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9.29.14 Work Edu
How many organisms in this food web eat only producers? How do you know?
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We will learn about work and ramps by taking notes from edusmart
Force, motion, and energy. The student knows that there is a relationship among force, motion, and energy. The student is expected to:
(A) contrast situations where work is done with different amounts of force to situations where no work is done such as moving a box with a ramp and without a ramp, or standing still;
PRead and explain what you should be able to do by the
end of today.
Explain why the motor cyclist would use this road, instead of driving straight up.
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9.30.14 Energy and Work BKWK
- Describe the energy
transformation. S
OBJ: We will contrast situations where work is done with different amounts of force and no work by using our science textbook and completing graphic note organizers.
P1. Work occurs when ______ and _____ are in the same direction.
Force, motion, and energy. The student knows that there is a relationship among force, motion, and energy. The student is expected to:
(A) contrast situations where work is done with different amounts of force to situations where no work is done such as moving a box with a ramp and without a ramp, or standing still;
P1. Work occurs when ______ and _____ are in the same direction.
2. ________ energy from your muscles is turned into kinetic energy when you push an object.
3. A ramp is used to …
Force, motion, and energy. The student knows that there is a relationship among force, motion, and energy. The student is expected to:
(A) contrast situations where work is done with different amounts of force to situations where no work is done such as moving a box with a ramp and without a ramp, or standing still;
Energy transformations and Work
Lesson 4.3
Read pages 154 – 159 and complete the following:
• Describe page 154• Describe page 155• Characterize page 157• Math Skills Practice page 158• Classify page 159• Summarize page 160
C/E
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Complete page 161• Questions 1 – 7.Tear out page and turn in for grade!
10.01.14 Work StationsWe will contrast situation of work and no work by creating diagrams of different situations where work or no work may be done. S:
2m
10,000 N
Calculate work:
1. Write the equation
2. Plug in the numbers for force and distance
3. Multiply
4. Label your answer with the correct unit
Describe how we know if work is being done.
P:
A&C:At each station:
1.Record the station number from the
direction card at your station.
2.Draw the situation.
3. Label the arrows with force and distance.
4. Explain if work is being done or not!
E:
Use a half page to contrast if work or no work is being done in each picture. • Describe both the force and the distance for each situation.
• Remember these pictures aren’t in your journal so you must describe with words!
10.02.14 Ramp LabWe will determine how ramps affect the amount of force by completing a lab
S- Be sure to justify your answer! 1
oTitle: Force and Ramps
oPurpose: How will the angle of a ramp effect the amount of force needed to move the object?
oMaterials: ramp, object, spring scale, protractor
oHypothesis: If we increase the angle of the ramp then the amount of force needed to move the object will ___________ because…
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Procedures: At each of the angles, use
the spring scale to measure the amount of force needed to move it up the ramp.
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Angle Force30 degrees60 degrees90 degrees
oGraphing our independent and dependent variables.
o Independent variable (X axis ):
oDependent variable (Y axis):
oConstant variable:
A
CWhat is the relationship between the angle of the ramp and the amount of force needed to move the object? Use your graph to justify your answer.
Write a half page reflection on what you watched
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10.03.14 Writing to Learn: Work
1. Who is doing more work? Show your calculations and explain.
2. Who’s work will feel more difficult? Explain!
SOBJ: We will contrast situations where work is done with different amount of force to situations where no work is done by writing to learn.
Situation A
Situation B
F=30 N
D=4 m
F=60 N
D=2 m
P In which situation is work being done on the image to the right? Explain
Work Graphic OrganizerA
Work No Work
Copy the following graphic organizer to contrast situations of work vs no work by drawing or writing examples of each in the corresponding boxes.
Work and Simple MachinesC
TAKE NOTES FOR YOUR QUIZ
Writing to Learn:Pretend you are moving to a new house and you have to pack, load and unload your belongings. Write an essay to contrast situations where you did work and no work while moving to your new house.
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