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7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 1/20
Motion and Machines Unit Name:
Due:
Please check the diamond and then initial the line after reading the sentencebelow.
I am aware that I need to show all mathematical work in an organized mannerto receive any credit for a question that involves calculations of any kind.Omitting / leaving out the units in the problem or at the end will also result inzero credit ◊
Please explain how the picture below represents Newton’s FirstLaw of Motion. Wh should ou alwas wear a seatbelt!
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
Describe how the ima#es below relate to Newton’s First Law
1
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 2/20
Please draw what will happen to a car dri$in# too fast on the sharpcur$e below. !"plain with some important vocabulary.
%an ou explain how this bird demonstration wor&s!
2
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 3/20
Please label the picture with correct tpe of friction below.
Describe the Positi$es and Ne#ati$es of Friction 'elow
( )
3
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 4/20
Please make an aerodynamic vehicle in the box below. Provide some information about aerodynamics.
Please describe Newton’s *rd Law usin# the $isual below in a shortpara#raph of at least +, words.
Which of Newton’s Law’s applies here! -xplain usin# the space onthe ri#ht.
4
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 5/20
Please discuss how Newton’s +nd Law F/ma0 applies to thepicture below. 'oth $ehicles were tra$elin# at the same speed.
Please pro$ide a $isual that demonstrates each of Newton’s threeLaws1st +nd *rd
5
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 6/20
2ee if a nei#hbor understandsit3.
2ee if a nei#hbor understandsit3.
2ee if a nei#hbor understandsit3.
Please 4ll some descriptions in the trian#le below for F/ma
◊ #$O% &O'( %O() I* +* O(,+*I-! +**!( %I0$ '*I0#1
6
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 7/20
5 #o)cart with a mass of +66 &#includin# passen#ers acceleratesfrom to a speed of 16 meters persecond before crashin# into a bric&wall. F/ma)What was the force of this crash in
newtons!
5 leaf wei#hin# 2 grams falls from atree at a rate of + meters e$ersecond m7s80. What is the force ofthe leaf hittin# the #round innewtons!
on3t forget to convert4
5 car stri&es a #uardrail and the
impact was +69666 newtons.)he car wei#hed 1;66 &ilo#rams9how fast was it mo$in# in metersper second 5m/s674
5 car stri&es bric& wall and the
impact was 1,9666 newtons. he carwas tra$elin# at , m7s8.)<ow much did it wei#h in)ilograms!
Please describe potential and &inetic ener# usin# the half pipebelow.
Please describe how potential ener# can be turned into &ineticener# usin# the picture below as a $isual aid.
7
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 8/20
What’s the potential ener# of the roc&! Use the e=uation in our >ournal. 5nswer is in ?oules. #how your organized work1 P!8 4
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 9/20
%alculate the potential ener# for a *&# bas&etball droppin# from a hei#htof * meters with a $elocit of @.A m 7s8. )Find the P- in ?oules! P-/m#hand please show your work B
%alculate the potential ener# for a1, &# roc& droppin# from a hei#ht of166 meters with a $elocit of @.A m 7s8. )Find the P- in ?oules! Pleaseshow your work B
5 s&i >umper mo$in# down the hillhad a Potential -ner# of 1*66
?oules9 and a Cinetic -ner# of *9@66 ?oules.What is her Mechanical -ner#!Please show your work1
What is the &inetic ener# of a +6&ilo#ram cannon ball tra$elin# at 6meters per second!9Please show your work1
!
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 10/20
What force can be seen below!What is the speed of a car thatta&es two hours to dri$e A6miles!
<ow far did E dri$e if E tra$eledA+ &m7hr for hours!
P:!+#! #$O% &O'( %O()1
1"
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 11/20
Ef a car tra$elin# at a $elocit ofA6 m7s72outh accelerated to a
$elocit of 166 m7s72outh in ,seconds9 what is the carsacceleration! Please showyour work1emember9 he 2E base unit m7s8
he same car tra$elin# 166 m7s72outh decelerates to a $elocit
of 6 m7s72outh in * seconds.What is the cars deceleration!Please show your work1emember9 he 2E base unitm7s8
11
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 12/20
What can ou tell me about the picture below! Enclude Newton’sLaws of Motion ( Potential and Cinetic -ner# and ra>ector.5pex!0
What do all machines do! Ef ou don’t &now9 then please list all ofthe possibilities. <int9 Et’s in the notes3.
12
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 13/20
Please pro$ide the name of the correct pulle in the boxes below.5lso pro$ide each pulle’s Mechanical 5d$anta#e.
M5/ M5/M5/
urn this pa#e sidewas and construct a four pulle sstem ormore.%hat is your pulley3s echanical +dvantage4
13
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 14/20
Please pro$ide the name of the correct class of le$er in the boxesbelow Label each arrow as the eGort force9 load9 or fulcrum0.
M5/
Please label the machines below. here can be more than oneanswer per s=uare. +lso ;nd the + where information is
given on ne"t page.
14
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 15/20
Please show yourwork<O<I
Please show yourwork<O<I Please show your work
8 =.>?
<O<I
+8 + 8
15
4"cm
2 cm
1"5
Pitch =1
Diameter 3
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 16/20
Please label all of the simple machines in the pictures below. Houmust draw arrows to them as ou describe them. 5 stron# answerwill show more than 16.
16
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 17/20
2&etch out a ube Ioldber# machine that ma&es a simple tas&$er complex. Hour machine must include all of the simplemachines we ha$e learned. Please label the machines and ourdetails count.
JWheel and 5xle JWed#e JEnclined Plane JPulleJ2crew JLe$er
@opyright A BC>C (yan P. urphy
17
7/26/2019 Motion and Machines HW
http://slidepdf.com/reader/full/motion-and-machines-hw 19/20
1* ) 5n ob>ect with at least oneslantin# side endin# in a sharp ed#e9which cuts material apart1, ) pe of machine that uses a stiGbar that rests on a support called afulcrum which lifts or mo$es loads1K ) he path of in# ob>ect: the
path that a pro>ectile ma&es throu#hspace under man based on man$ariables.1; ) he relationship between anob>ects mass m9 its acceleration a9and the applied force F is """"""""".1A ) his is the name for the ener#of motion1@ ) pes of machine that does wor&with one mo$ement.++ ) he resistance encountered
when one bod is mo$ed in contactwith another.+ ) Desi#ned or arran#ed to oGerthe least resistant to uid ow+K ) ne """"""""""" is the amount offorce re=uired to #i$e a 1)&# mass anacceleration of 1 m7s7s+; ) his is the rate of chan#e in$elocit
load@ ) he 4rst law of """""""""""""states that all ener# is either &ineticor potential16 ) P- / " " " 1+ ) ne of the foremostmathematicians and phsicists of all
time )2ir Essac """"""""""".1 ) pe of machine with a slantin#surface connectin# a lower le$el to ahi#her le$el. Enclined """"""""".1; ) his is a PU2< or a PULL9 thatcauses a chan#e in the motion orshape of an ob>ect+6 ) 5n ob>ect in motion tends to stain """""""""".+1 ) his is the abilit to dowor&9cause somethin# to mo$e9 and
#ets lost in =ualit.+* ) For e$er action there is ane=ual and opposite """"""""""""".+, ) -ner# cannot be created or """"""""""""".
Possible +nswersD5cceleration9 5erodnamic9 %ompound9 Destroed9 -ner#9 F/M59 Force9 Friction9 ?oules9Cinetic9 Le$er9 Mechanical9 m#h9 Momentum9 Motion9 Newton9 newton9 Plane9 Potential9Pulle9 eaction9 est9 2crew9 2imple9 2lidin#9 hermodnamics9 ra>ector9 Oelocit9Wed#e9 Wor&
1!