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TROADIA DELOS REYES CURVA
T -III PORFIRIO G COMIA MEMORIAL
NATIONAL HIGH SCHOOL DIVISION OF ORIENTAL MINDORO
Prepared by
A SCIENCE INTERVENTION MATERIAL
Science IVTeacher Category
LEAST MASTERED
COMPETENCY
1 State the operational definition of work
II Determine the presence and absence of work in a given situation
III Calculate the work done on the object by a constant force or a variable force
IV Compute the work done by graphical method
Our goals are the following
I GUESS YOUrsquoRE RIGHT
ldquoDo not wait for extraordinary circumstances to do good action try to use ordinary situationsrdquo
-Jean Paul Richter-
This boy does NO WORK on the FLOWER
Can you explain why
When angle is
90ordm
Thatrsquos what wersquore going to discover
in this study
LETS GO
Hey look again at the pictures of the two friends What made Reymark push the table at a certain distance
He made it because
he exerted a force on it
What do you mean by that
When you pushed
something that
means you
applied a FORCEhellipor
even when you
pull something
Yup But donrsquot you know
that we have two types of Force
Clever Hmmhellip even
pulling something
Think More
Congratulations You are really learning a lot You did a lot of
work today
I know The contact and non-contact force am I
correct
Precisely You are still connect
edhellip
I must be How about
you do give examples for each type Not
bad Letrsquos
working on it
Turn on to the next page
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
LEAST MASTERED
COMPETENCY
1 State the operational definition of work
II Determine the presence and absence of work in a given situation
III Calculate the work done on the object by a constant force or a variable force
IV Compute the work done by graphical method
Our goals are the following
I GUESS YOUrsquoRE RIGHT
ldquoDo not wait for extraordinary circumstances to do good action try to use ordinary situationsrdquo
-Jean Paul Richter-
This boy does NO WORK on the FLOWER
Can you explain why
When angle is
90ordm
Thatrsquos what wersquore going to discover
in this study
LETS GO
Hey look again at the pictures of the two friends What made Reymark push the table at a certain distance
He made it because
he exerted a force on it
What do you mean by that
When you pushed
something that
means you
applied a FORCEhellipor
even when you
pull something
Yup But donrsquot you know
that we have two types of Force
Clever Hmmhellip even
pulling something
Think More
Congratulations You are really learning a lot You did a lot of
work today
I know The contact and non-contact force am I
correct
Precisely You are still connect
edhellip
I must be How about
you do give examples for each type Not
bad Letrsquos
working on it
Turn on to the next page
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
I GUESS YOUrsquoRE RIGHT
ldquoDo not wait for extraordinary circumstances to do good action try to use ordinary situationsrdquo
-Jean Paul Richter-
This boy does NO WORK on the FLOWER
Can you explain why
When angle is
90ordm
Thatrsquos what wersquore going to discover
in this study
LETS GO
Hey look again at the pictures of the two friends What made Reymark push the table at a certain distance
He made it because
he exerted a force on it
What do you mean by that
When you pushed
something that
means you
applied a FORCEhellipor
even when you
pull something
Yup But donrsquot you know
that we have two types of Force
Clever Hmmhellip even
pulling something
Think More
Congratulations You are really learning a lot You did a lot of
work today
I know The contact and non-contact force am I
correct
Precisely You are still connect
edhellip
I must be How about
you do give examples for each type Not
bad Letrsquos
working on it
Turn on to the next page
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
ldquoDo not wait for extraordinary circumstances to do good action try to use ordinary situationsrdquo
-Jean Paul Richter-
This boy does NO WORK on the FLOWER
Can you explain why
When angle is
90ordm
Thatrsquos what wersquore going to discover
in this study
LETS GO
Hey look again at the pictures of the two friends What made Reymark push the table at a certain distance
He made it because
he exerted a force on it
What do you mean by that
When you pushed
something that
means you
applied a FORCEhellipor
even when you
pull something
Yup But donrsquot you know
that we have two types of Force
Clever Hmmhellip even
pulling something
Think More
Congratulations You are really learning a lot You did a lot of
work today
I know The contact and non-contact force am I
correct
Precisely You are still connect
edhellip
I must be How about
you do give examples for each type Not
bad Letrsquos
working on it
Turn on to the next page
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Thatrsquos what wersquore going to discover
in this study
LETS GO
Hey look again at the pictures of the two friends What made Reymark push the table at a certain distance
He made it because
he exerted a force on it
What do you mean by that
When you pushed
something that
means you
applied a FORCEhellipor
even when you
pull something
Yup But donrsquot you know
that we have two types of Force
Clever Hmmhellip even
pulling something
Think More
Congratulations You are really learning a lot You did a lot of
work today
I know The contact and non-contact force am I
correct
Precisely You are still connect
edhellip
I must be How about
you do give examples for each type Not
bad Letrsquos
working on it
Turn on to the next page
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Hey look again at the pictures of the two friends What made Reymark push the table at a certain distance
He made it because
he exerted a force on it
What do you mean by that
When you pushed
something that
means you
applied a FORCEhellipor
even when you
pull something
Yup But donrsquot you know
that we have two types of Force
Clever Hmmhellip even
pulling something
Think More
Congratulations You are really learning a lot You did a lot of
work today
I know The contact and non-contact force am I
correct
Precisely You are still connect
edhellip
I must be How about
you do give examples for each type Not
bad Letrsquos
working on it
Turn on to the next page
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Congratulations You are really learning a lot You did a lot of
work today
I know The contact and non-contact force am I
correct
Precisely You are still connect
edhellip
I must be How about
you do give examples for each type Not
bad Letrsquos
working on it
Turn on to the next page
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Objective To identify if the given situation is a contact or non-contact force
DirectionsPut a check ( ) whether the following
situations are contact force or non-contact force
Situations Contact Force
Non-contact Force
1 Writing the results of the activity
2 Formation of Rainbow
3 Playing Basketball
4 Falling of leaves
5 Painting the bulletin board
May the ldquoforcerdquobe with
you
Activity Card 1
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Force - is a push or pull that produces motion prevents motion and changes the direction of the motion of an object It has both magnitude and direction and therefore a vector quantity
Contact Force - a force between two objects (or an object and a surface) that are in contact with each other
NON-CONTACT FORCE - IS ANY FORCE APPLIED TO AN OBJECT BY ANOTHER BODY THAT IS NOT IN DIRECT CONTACT WITH IT
And now may the force be
with you too
ldquoSuperb The first reality is
unfoldedhelliprdquo
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Great Now I know what
force is and its
two types
hellipand this
F-O-R-C-E is
somewhat related to
work
Really How come
they are related
with each
other
Terrific
Yoursquove got your
brain in gear todayhellip
Yipi
Yeha
Try to push against a wall as hard as you can just like Elvin in the introductory picture in this study Then describe what you felt Did the wall move Did you exert force as you push against the wall
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Thatrsquos NOT the work right
They are two factors to consider
before we conclude that work is done
on a body
Well for us to determine
in which situationaction the work
was accomplished
let us challenge to
the next activity
Yipi Yeha Letrsquos gohellip
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Activity Card 2 Present or AbsentObjective
To determine if there is a work done or no work done in the picturesDirections
Put a check () whether the following pictures show a work done or no work done
1 2
Work done Work doneNo work done No work done
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
3
5
4
6
Work done
Work doneWork done
Work doneNo work done
No work done No work done
No work done
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
7 8
9 10
Work doneNo work done
Work doneNo work done
Work doneNo work done
Work doneNo work done
ldquoSUPERBrdquo The second reality is unfolded
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
CONGRATULATIONS You
really learning a lot You did a lot of Work today
Perfect Yoursquove
just about
mastered it
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
now I understand that its not only force matters if it is
applied at angle to lift upward the object having a
coefficient of friction along a
horizontal surface but also the distance the
object moved must be in the same direction
Thank you so much my heart overflows with gratitude Irsquom
starving
What Say it now Hurry up
Precisely Your such a gifted
modern James Prescott Joule
But another reality knocks my mindhellipEppssshellip I am going to treat you your favorite
cheeseburger
How can we determine the
amount of work done on the
object
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Thatrsquos really a nice question Maybe now yoursquove really understand
the scientific definition of
work
Of course And ready to solve
problems Buthellipone
last question please
What is that Hurry
up
What are those
formulas and steps to follow
Ah see We have 4
formulas to consider
You mean wersquoll torn on to the next
page
EXACTLY RIGHT
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Formulas of Work
F x DForce x distance
mghMass x
acceleration due
to gravity x height
micro FnDCoefficie
nt of friction x Normal F
x distance
Cos θ FdCosine θ x force x distance
Expressed in Joules (J)1Nbullm = 1J
1dyrebullcm = 1 ergIn honor of James
Prescott JouleREADY TO
SOLVE
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Step 4 Box your final answer
Step 3 Compute for the required
Step 2 Substitute the values
Step 1 Write the given required and formula to be used
Before computing here are the steps
Turn on to the next page
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Sample Problem
Suppose you pull your schoolbag with
a force of 30 N parallel to the ground to your
classroom 20m away What is the work done in your bag
Letrsquos compute
Step1 GivenF= 30N d =
20m
Step2 RequiredW =Step3 Formula W = Fxd
= (30N)(20m)Step4 Final answer = 600Nm
Are you now ready to solve problems
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Activity Card 3 Let the Work Be Done
ObjectiveTo compute for the work done in the given problemssituations
Problem 1A man
pushes his car with a force of 30N to the right He moves the car at a distance of 3 meters to the right What amount of work has he done
Problem 2A
loaded cart as shown in figure was push along the handle of 30o with the direction of motion and the cart moved through a distance of 6 m how much work was done
Given
Required
Solution
Given
Required
Solution
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Problem 3A book
weighing 10N moves at a constant velocity along a horizontal surface having a coefficient of friction of 030 what is the work done on the book if it is moved at a distance of 05m
Given
Required
Solution
Problem 4
Suppose a librarian lift a 15kg book from the lowest shelf in the cabinet to the fourth shelf 2m higher What is the work done on the book(assume g=98mssup2)
Given
Required
Solution
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Though yoursquore
hungry we are still on the right track Since we
certainly did well today
Cheeseburger Jollibee Jollibee hellip have first a
gamehellip
They are still on the right trackhellip since they certainly did well todayhellip
Now this is what we call a fine
jobhellip
Hmm Ehem
Later for that let us
sum up first our
learnings
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Time to Sum UpIrsquove learned thathellip
Work
ForceDistan
ce
Contact
Non-conta
ct
Cos θ x Fd
F x D
microFnD
Displacement
mgh
Product of the force exerted on an object and the distance the
object move
If a force is applied at an angle
At constant velocity along a horizontal
surface with coefficient of friction
Lifting an object wc is equal to the weight
and gravity
Is done
only when a force is applied to a bod
y and moves it
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Test your Wits
____1 Which of the following forces is an example of a contact force
a Gravitational force b Magnetic force c Electric forced Frictional force
____2 Which of the following are NOT examples of non-contact force
a Gravitational force b Magnetic force c Electric forced Frictional force____3Which is the example of non-contact force in the
following situationsa Sun and planets gravitational pull b sweeping the
floorb A ball rolling d playing softball ____4 Non-contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
____5 Contact force can also be termed asa Action-Reaction Force c Air-Resistance
Forceb Action-at-a-distance d Frictional Force
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 1
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
DirectionsChoose the letter of the correct answer
Write your answer on the space provided before each number
Assessment Card 2
_____1 In which instance there is no work done in the system
a a basket being lifted b a person who stood in an ascending
elevator c a stone whirled around a
horizontal circle d a big box dragged along the floor_____2 Work can be defined as _______________ a a vector quantity b performed every time you exert force c the product of the applied force and the
time the force acts d done only when an object moves some
distance due to an applied force
_____3 In which of the following situations work is done
a lifting an object from the floor to the table top
b supporting an object on your head while standing in place
c pushing a concrete wall d carrying a bag on your lap while seating
______4 From the pictures below which situationaction show the presence of work______5 With the pictures below choose which of the situationaction show the absence of work a b c
d
KEEP GOING
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Assessment Card 3
DirectionsChoose the letter of the correct
answer Write your answer on the space provided before each number
_____1 Suppose you pull your school bag with a force of 30N and it makes an angle of 60degparallel to the ground to your classroom 20m away What is the work done in the bag
a 100 Nbullm b 200 Nbullm c 300 Nbullmd 400 Nbullm_____2 Suppose you lift your recipe cake of a mass 1kg from the second shelf in a refrigerator to the last shelf 15m higher What is the work done in your cake Assume ag = 98mssup2
a147 Nbullm b 157Nbullm c 167 Nbullmd 177 Nbullm_____3 You pushed against a rock with a force of 100N for 20 seconds If the rock did not move how much work in joules would you have done
a 0 joule b 1 joule c 5 joule d 2000 joule_____4 A book weighing 20N moves at a constant velocity along a horizontal surface having a coefficient of friction of 020 what is the work done on the book if it is moved at a distance of 2m
a16 Nbullm b 8 Nbullm c 4 Nbullm d 2 Nbullm
_____5 How much is the work done in lifting 30N of bricks to a height of 10 meters
a 30 joule b 300 joule c 3000 joule d 30000 joule
Want a star Think more
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Enrichment Card 1 The Golden Scroll
GOT IT
Let us all unfold the Reality of
Work
ldquo42 31 34 24 22 35
16 31 34 13 1515 43 15 34 36
15 14 36 21 34 31 37
16 2111
14 22 35 36 11 27 13 15rdquo
1 2 3 4 5 6 7
1 A B C D E F G
2 H I J K L M N
3 O P Q R S T U
4 V W X Y Z
Unlock the secret message in the golden scroll by using the code chart below
Think of This
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Test your WitsSecret to Reach the finish
linehellipHow many words of three (3) letters or more can you
track down on this circles The letters need not be connected by lines At least one word can be formed in the eleven letters that reveals the secret to reach the finish line
E
E
E
A
V
S
P
R
N
C R
E
How did you score5-15 Good16-25 Very Good26 or more Excellent
PerseveranceKeep on
trying Work for it
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
T T NE ME C A L P S I D
MU J E ME F A L K I I H
MT Y ODDOF X X S Y Z
E HHC UZ R Y MT R R C
E HY GWL C WA V R C O
S B X X I T E NT NV US
S B OB J E C T L NGOI
A X C P NE WT ONOL N
MOV E NOI T C I R F E
Letrsquos do this fun activity just try to hunt
for words you
think that has
any relation
ship with
work
Enrichment Card 3
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
REFERENCE CARD
Arlene A Aceron - Brazal et al 2002 Saint Bernadette Publications Inc Physics for Filipinos p 52 85-88
Lolita M Salmorin et al 2004 Abiva Publishing House Inc
Science and Technology Physics IV p 179-182
Delia Cordero-Navaza et al 1996 Phoenix Publishing House Inc
You and the Natural World Series Physics p 116-117
httpwwwtutor4physicspositivenegativeworkhtm
httpwwwprincetonolFilesPraisehtm
httpimagesgooglecomphimages
httpenwikipediaorg
httpphysicsinfowork
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Key to Correction
Assessment Card 1 Contact and Non-contact Force
Let us
1 A 2 D 3 B 4 B 5 A
Assessment Card 2 Present or AbsentSee how smart you are
1 A 2 D 3 C 4 C5 D
Assessment Card 3 Let the Work Be Done
1 C 2 A 3A 4 B 5 B
It out
THIS IS REALLY IS IT
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Activity Card 2 Present or Absent
Work done
No work done
1
2
3
4
5
6
7
8
9
10
Work done
No work done
Exactly Right
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Activity Card 3 Let the Work Be Done
GivenF = 30N to
the rightd = 3m to
the rightRequired
W = SolutionW= F x d = (30N) (3m) = 90Nm or 90 J to the right
GivenCos 30deg = 0866
F = 70Nd = 6m
RequiredW =
SolutionW = (F cos θ) d = (70N x 0866) 6m =36372 J
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
GivenFn = 10 Nd = 05 mmicro = 030
Required W=
Solution W = micro Fn d
(030)(10 N)(05)
= 15J
Givenm= 15 kg g= 98
mssup2h=2m
RequiredW=
Solution W= mgh
=15 kg)(98mssup2)(2m)= 294 Nm
GOOD WORK
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
CONGRATULATIONS
EXCELLENT Yoursquove just
about to mastered it
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
ldquoWORK IS FORCE EXERTED THROUGH A
DISTANCErdquo
Enrichment Card 1 The Golden Scroll
PERSEVERANCE
Secret to Reach the finish linehellip
Enrichment Card 2
Carp crave cave crap evecreep
peace vane vase spare spearcase
Sea pea see acne neararc
verse ear nap car peerspen
race are rape care seencan
neap rare rear ran capserve
Reserve nerve preserve
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
SEE ME SEE YOUhellip
T T N E M E C A L P S I D
M U J E M E F A L K I I H
M T Y O D D O F X X S Y Z
E H H C U Z R Y M T R R C
E H Y G W L C W A V R C O
S B X X I T E N T N V U S
S B O B J E C T L N G O I
A X C P N E W T O N O L N
M O V E N O I T C I R F E
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
TIME FIRST
Most certainly a Physics teacher or any other
person standing is doing work but the work being done isnrsquot easily visible Inside the body the heart
is pumping blood the digestive system is grinding away of
breakfast receptors are drawing molecules across
cell membranes We do work even as we sleep
Forces causing displacement are
happening everywhere
under our skins The human body is a
busy place
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
ldquoBeing busy does not always mean real
work The object of all work is
production or accomplishment and to
either of these ends there must be
forethought system planning
intelligence and honest purpose as
well as perspiration Seeming to do is
not doingrdquo
THOMAS A EDISON
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
Isnrsquot that great But thatrsquos all for nowhellip
Bye
CLOSED
