Newton’s No*ons
Considerthis.
•  Acarbeginsatthestartlinetravelingataspeedof20feet/secondfor
3seconds.
•  Thenitgoes30:./sec.forthenext2½seconds.
•  Next,itsspeedchangesto25:./sec.for4seconds.
•  Andthenitgoes40:./sec.for3½secondstothefinishline.
TASK#1:Makeatableofthetraveldataandshowhowfarthecar
shouldtravelduringeachsecondofthejourney.
TASK#2:Makealinegraphtoshowthedistancetraveledbythecar
duringitsjourney.
KeyQuesDons:
Answertheseinorder.
•  Howfardidthecartravelduringthefirst3seconds?
•  Howfardidthecartravelduringthenext2½seconds?
•  Howfardidthecartravelduringthenext4seconds?
•  Howfardidthecartravelduringthelast3½seconds?
•  Whatwasthetotaldistancethatthecartraveled?
•  WhatwasthetotallengthofDmethatthecartraveled?
•  Whatwastheaveragespeedforthecarduringthetrip?
•  Whatdoesthesteepnessofthedifferentpartsofthelinegraphmean?
TASK#1:Measurehowlongittakesaballtoroll3meterswhen
releasedatthe100-cm.markontheramp.
TASK#2:Measurehowlongittakesaballtorollfromthe3-meter
marktothe6-metermarkwhenitisreleaseatthe100-cm.markon
theramp.
TASK#3:Measurehowlongittakesaballtoroll3meterswhen
releasedatthe50-cm.markontheramp.
TASK#4:Measurehowlongittakesaballtorollfromthe3-meter
marktothe6-metermarkwhenitisreleaseatthe50-cm.markon
theramp.
Distance that the Car Has Traveled at Different Times
Time
Period*
TotalTimeforthisPeriod
Distancefrom
theStarDngPoint
AverageSpeed
(Fromstarttonow)
1
5seconds
25meters
2
5seconds
75meters
3
5seconds
175meters
4
5seconds
280meters
5
5seconds
350meters
6*
10seconds
420meters
7
10seconds
480meters
8
10seconds
500meters
9
10seconds
500meters
10
10seconds
500meters
Distance from
Home
1. Look at the drawing to the
right. Explain any forces that
must be in the drawing. Tell
whether the forces are
balanced or unbalanced.
2. If the paper were pulled to
the leB slowly, tell what would
happen and why. Tell if there
are any balanced and
unbalanced forces.
Ball “A” is moving and Ball “B” is siIng sJll. Use
your pencil to draw the moJon of Ball “B” aBer
the collision.
A
B
Ball “X” is moving and Ball “Y” is siIng sJll. Use
your pencil to draw the moJon of Ball “Y” aBer
the collision.
X
Y
ThearrowsbelowshowtwoforcesacDngonawagonatthe
sameDme.Theamountofeachforceisshownnexttoeach
arrow.
DescribetheresulDngmoDonofthewagon.
__________________________________
Howwouldyoudescribetheseforces?
______________________________________
35N.
70N.
Pulleys
Drawapulleysystemthatthattwopulleys.
Oneofthepulleyshasthreewheelsandthe
otheronehastwowheels.Showthepulley
systemli`ingaboxthatis100pounds.
Howhardshouldyouhavetopulltoli`the
100-poundbox?________________
This inclined plane is 4’ high and 16’ long. If
the 100-lb. box has wheels, about how much
force does it take to roll it up the plane?
Simple Machine Type?
Simple Machine Type?
Simple Machine Type?
Simple Machine Type?
Simple
Machine
Type?
Simple Machine Type?
Simple Machine Type?
Simple Machine Type?
Simple Machine Type?
Simple Machine Type?
Let’strysomesimplemachines!