1.Imagineanexperimentinwhicha8lbbowlingballanda10lbbowlingballaredroppedfromabuilding’sfifthfloor windowatthesametime.Theheavierballwillreachthegroundfirst.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.04
Topic:Gravity
2.Whenyourollaballacrossthefloor,itcomestoastopbecauseyouarenolongerexertingaforceonit.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.03
Topic:Inertia
3.Anobjectaccelerateswhenitslowsoritsdirectionofmovementchanges.
TRUE
Accessibility:KeyboardNavigation
Bloom'sLevel:2.Understand
Gradable:automatic
Section:02.02
Topic:Kinematics
4.Acartravelingat20mphonacurvedexitramphasaconstantvelocity.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.02
Topic:Kinematics
5.Newton'ssecondlawstatesthatifanunbalancedforceactsonanobject,itwillmoveatconstantvelocity.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.06
Topic:Newton'slaws
6.Thereasonamovingobjectslowsdownisthatitsforceofmotiongraduallyrunsout.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.03
Topic:Inertia
7.Themomentumofanobjectremainsthesameunlessanunbalancedforceactsonit.
TRUE
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.07
Topic:Momentum
8.Astronautsexperienceaweightlessconditionwhentheyareinorbit.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.09
Topic:GravityandMotion
9.TheforceofgravitynearthesurfaceofEarthis9.8m/s2.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:2.Understand
Gradable:automatic
Section:02.04
Topic:GravityandMotion
2-1
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10.Theattractiveforcea70kgpersonexertsonEarthismuch,muchsmallerthantheforceEarthexertsontheperson.
FALSE
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Newton'slaws
11.Intheequation represents
A.averagespeed.
B.instantaneousspeed.
C.finalspeed.
D.constantspeed.
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.02
Topic:Kinematics
12.Ignoringairresistance,thevelocityofafallingobject
A.isconstant.
B.isconstantlyincreasing.
C.increasesforawhile,thenbecomesconstant.
D.dependsonthemassoftheobject.
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.04
Topic:GravityandMotion
13.Thetendencyofamovingobjecttoremaininunchangingmotionintheabsenceofanunbalancedforceiscalled
A.inertia.
B.freefall.
C.acceleration.
D.impulse.
Accessibility:KeyboardNavigation
Bloom'sLevel:2.Understand
Gradable:automatic
Section:02.03
Topic:Inertia
14.Aheavyobjectandalightobjectaredroppedfromrestatthesametimeonaplanetwithnoair(vacuum).Theheavier objectwillreachtheground
A.beforethelighterobject.
Batthesametimeasthelighterobject.
C.afterthelighterobject.
D.Itdependsontheshapeoftheobject.
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.04
Topic:GravityandMotion
15.Gravityisanattractiveforcebetween
A.allmassiveobjects.
B.EarthandobjectsonEarth.
C.EarthandMoon,andobjectsonEarth.
D.allobjectseverywhere.
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.09
Topic:Newton'slaws
16.Thenewtonisaunitof
A.motion.
B.energy.
C.power.
D.force.
Accessibility:KeyboardNavigation
Bloom'sLevel:2.Understand
2-2
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Gradable:automatic
Section:02.06
Topic:Newton'slaws
17.Theweightofa50kgboxisclosestto
A.5N.
B.50N.
C.500N.
D.5000N.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Weightandmass
18.ThepoundisanEnglishunitofmeasure;itsSIcounterpartisthe
A.newton.
B.kilogram.
C.joule.
D.momentum.
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.06
Topic:Weightandmass
19.Supposethatarocktiedtoastringisswinginginacircle.Ifthestringlengthisincreasedsothatthelengthdoubledbut thesamespeedismaintained,thentheforcenowexertedonthestringis
A.thesameasbefore.
B.doubled.
C.halfasgreat.
D.fourtimesasgreat.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.08
Topic:Circularmotion
20.Askateboarderpushesonthegroundwithherfoot.Sheandtheskateboardacceleratedownthesidewalkduetotheforce
A.sheexertsagainsttheground.
B.betweentheskateboardwheelsandtheground.
C.thegroundexertsagainstherfoot.
D.ofgravityactingontheskateboard.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Newton'slaws
21.Ifanunbalancedforceappliedtoanobjectdoubles,then
A.itsvelocitydoubles.
B.itsaccelerationdoubles.
C.itsaccelerationiscutinhalf.
D.itsaccelerationincreasesbyafactoroffour.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Newton'slaws
22.Everythingthathappensintheuniversecanbetracedtointeractionsof A.matterandgravity.
B.lightandmatter.
C.fourfundamentalforces.
D.gravitywavesandlight.
Accessibility:KeyboardNavigation
Bloom'sLevel:3.Apply
Gradable:automatic
Section:02.02
Topic:Forces
23.Themassofa100Nsackofseedisclosestto
A.10kg.
B.10lb.
2-3
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C.98kg.
D.1,000kg.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Weightandmass
24.AblockofironistransportedtotheMoon.Whichofthefollowingistrue?
A.bothitsmassandweightremainunchanged.
B.itsmassdecreases,butitsweightremainsthesame.
Citsmassremainsthesame,butitsweightdecreases.
D.bothitsmassandweightdecrease.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Weightandmass
25.Fromtheequationw=mg,itisapparentthatweightisa(an)
Aforce.
B.mass.
C.acceleration.
D.Noneoftheabove.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Weightandmass
26.Ifyoudoublethemassofanobjectwhileanunbalancedforceremainsconstant,
A.theobjectmovesathalfthespeed.
B.theaccelerationoftheobjectisdoubled.
C.theobjectwillgraduallyslowdown.
D.Theaccelerationoftheobjectishalved.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.06
Topic:Newton'slaws
27.Ifyouconsiderthetotaldistanceandtotaltimeforatrip,youarecalculatinga(an)
A.instantaneousspeed.
B.constantspeed.
C.averagespeed.
D.nonuniformspeed
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.02
Topic:Kinematics
28.Tohitagolfballfarther,youshould"followthroughtheswing"because A.thisincreasestheforce.
B.momentumisconserved.
CoftherelationshipΔp=Ft.
D.momentumismv.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.07
Topic:Momentum
29.Aheavycannonballandalighterbowlingballweredroppedatthesametimefromthetopofabuilding.Attheinstant beforetheballshitthesidewalk,thecannonballhasgreater
A.velocity.
B.acceleration.
Cmomentum.
D.Allofthesearethesameforthetwoballs.
Accessibility:KeyboardNavigation
Bloom'sLevel:4.Analyze
Gradable:automatic
Section:02.07
Topic:Momentum
2-4
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30.A250gballtravelsatavelocityof40m/s.Itsmomentumis
A.4kg•m/s.
B.10kg•m/s.
C.160kg•m/s.
D.10,000kg•m/s.
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