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PHYSICS 10 1Practicequestions 1 .Abookisatrestontopofatable.Whichofthefollowingiscorrect? A.Thereisnoforceactingonthebook. B.Thebookhasnoinertia. C.Thereisnoforceactingonthetable. D.Thebookisinequilibrium. E.Theinertiaofthebookisequaltotheinertiaofthetable. 2 .ThepropertyofamovingobjecttocontinuemovingiswhatGalileocalled A.velocity. B.speed. C.acceleration. D.inertia. E.direction. 3 .AccordingtoNewton'sFirstLawofMotion, A.anobjectinmotioneventuallycomestoahalt. B.anobjectatresteventuallybeginstomove. C.anobjectinmotionmovesinaparabolictrajectoryunlessacteduponbyanetforce. D.anobjectatrestalwaysremainsatrest. E.anobjectatrestremainsatrestunlessacteduponbyanetforce. 4 .Ifanobjectismoving,thenthemagnitudeofits____cannotbezero. A.speed B.velocity C.acceleration D.AandB E.A,B,andC
5 .Acarinitiallyatrestacceleratesinastraightlineat 3 m/s².Whatwillbeitsspeedafter 2 seconds? A. 0 m/s B. 5 m/s C. 3 m/s D. 6 m/s E. 2 m/s 6 .Abodyinfreefallinavacuum A.willdropthesamedistanceduringeachsecondofitsfall. B.willhavethesameaveragespeedduringeachsecondofitsfall. C.willhaveaconstantvelocityduringeachsecondofitsfall. D.willnotbeacceleratedduringitsfall. E.willhavethesameaccelerationduringeachsecondofitsfall. 7 .Abowlingballataheightof 36 metersabovethegroundisfallingverticallyatarateof 12 metersper second.Whichofthesebestdescribesitsfate? A.Itwillhitthegroundinexactlythreesecondsataspeedof 12 m/s. B.Itwillhitthegroundinlessthanthreesecondsataspeedgreaterthan 12 m/s. C.Itwillhitthegroundinmorethanthreesecondsataspeedlessthan 12 m/s. D.Itwillhitthegroundinlessthanthreesecondsataspeedlessthan 12 m/s. E.Itwillhitthegroundinmorethanthreesecondsataspeedgreaterthan 12 m/s. 8 .Thespeedometerinyourcartellsyouthe____ofyourcar. A.acceleration B.averagespeed C.instantaneousspeed D.velocity E.inertia 9 .Toreportthe____ofanobject,wemustspecifybothitsspeedanditsdirection.
13 .Whichoftheseisthebestdescriptionofthetrajectoryofaprojectileshotfromthetopofahighcliffat anangleof 60 °belowthehorizontal(neglectingairresistance)? A.Theprojectilewillmovedownwardsata 60 °angleinastraightlineataconstantspeeduntilitstopsand thenfallsstraightdown. B.Theprojectilewillmovedownwardsata 60 °angleinastraightlineatagraduallydiminishingspeeduntil itstopsandthenfallsstraightdown. C.Theprojectilewillmovedownwardsata 60 °angleinastraightlineatagraduallyincreasingspeeduntil itstopsandthenfallsstraightdown. D.Theprojectilewillgraduallyarcdownward,followingthecurveofacircle. E.Theprojectilewillgraduallyarcdownward,followingthecurveofaparabola. 14 .Afirefighterwithamassof 70 kgslidesdownaverticalpole,acceleratingat 2 m/s².Theforceof frictionthatactsonthefirefighteris A. 70 N. B. 560 N. C. 140 N. D. 700 N. E. 0 N. 15 .The________ofanobjectontheEarth'ssurfacearedirectlyproportionaltoeachother. A.accelerationandmass B.massandweight C.forceandvelocity D.weightandacceleration E.speedandvelocity 16 .TheMoon'sgravityis 1 / 6 oftheEarth'sgravity.TheweightofabowlingballontheEarthwouldbe____ itsweightontheMoon. A.equalto B. 1 / 6 of C. 6 times
D. 36 times E. 1 / 36 of 17 .Whenacertainnetforceisappliedtoonebrickonafrictionlesssurface,itacceleratesat 6 m/s².When thesamenetforceisappliedtothreebricksthatarecementedtogether, A.theyaccelerateat 3 m/s². B.theyaccelerateat 6 m/s². C.theyaccelerateat 18 m/s². D.theyaccelerateat 2 m/s². E.theydonotaccelerateatall. 18 .Toacceleratea 6 kgmassat 2 m/s²requiresanetforceof____. A. 3 N B. 8 N C. 12 N D. 6 N E. 2 N 19 .Afallingobjectissaidtoreachterminalspeed A.whenitlandsontheground. B.whenitsairresistanceequalstheforceofgravityonit. C.whenthereisnoairresistanceactingonit. D.whenthereisnogravitationalforceactingonit. E.whenitstopsfalling. 20 .Foreveryactionthereisanequalandoppositereaction.Thisisastatementof A.Newton'sFirstLawofMotion. B.Newton'sSecondLawofMotion. C.Newton'sThirdLawofMotion. D.Newton'sFourthLawofMotion.
D.Theyellowballwillstopwhilethegreenballmovesleftat 3 m/s. E.Bothballswillsticktogetherandmovetotherightat 1 m/s. 25 .Animpulseof 100 N-sisappliedtoanobject.Ifthissameimpulseisdeliveredoveralongertime interval, A.theforceinvolvedwillbedecreased. B.theforceinvolvedwillbeincreased. C.themomentumtransferredwillbeincreased. D.themomentumtransferredwillbedecreased. E.theaccelerationinvolvedwillbeincreased. 26 .Case 1 :Anetforceof 10 Nactsonamassof 1 kgforatimeof 0. 2 s. Case 2 :Anetforceof 20 Nactsonamassof 1 kgforatimeof 0. 2 s. Bothcasesresultinaccelerationofthemass.Incomparison,Case 1 andCase 2 will A.involvethesameimpulseandproducethesameacceleration. B.involvethesameimpulseandproducedifferentaccelerations. C.involvedifferentimpulsesandproducedifferentaccelerations. D.involvedifferentimpulsesandproducethesameacceleration. E.producethesamechangeofmomentum. 27 .Momentumistheproductof A.massandvelocity. B.massandacceleration. C.velocityandacceleration. D.forceandinertia. E.forceandvelocity. 28 .Ifamovingobjectcutsitsspeedinhalf,howmuchmomentumwillithave? A.thesameamountasbefore B.twiceasmuchasbefore
C.onehalfasmuchasbefore D.fourtimesasmuchasbefore E.onefourthasmuchasbefore 29 .A1-kgballmovinghorizontallytotherightat 3 m/sstrikesawallandrebounds,movinghorizontallyto theleftatthesamespeed.Whatisthemagnitudeofthechangeinmomentumoftheball? A. 0 kg-m/s B. 2 kg-m/s C. 3 kg-m/s D. 4 kg-m/s E. 6 kg-m/s 30 .Potentialenergyistheenergypossessedbyanobjectdueto A.itsmomentum. B.itsposition. C.itsvelocity. D.itsacceleration. E.itsshape. 31 .Whichofthefollowingistrue? A.Abodywithzerovelocitycannothaveanypotentialenergy. B.Abodywithzeroaccelerationcannothaveanykineticenergy. C.Abodywithzeroaccelerationcannothaveanypotentialenergy. D.Abodywithzerovelocitycannothaveanykineticenergy. E.Abodywithzeropotentialenergycannothaveanyvelocity. 32 .Iftwoobjectsofdifferentmasshavethesamenon-zeromomentum, A.theonewithlessmasswillhavethegreaterkineticenergy. B.theonewithmoremasswillhavethegreaterkineticenergy. C.theywillhavethesamekineticenergy.
D. 20 joules E. 100 joules 37 .Whenyourunuptwoflightsofstairsinsteadofwalkingupthem,youfeelmoretiredbecause A.youdomoreworkwhenyourunthanwhenyouwalk. B.yourpoweroutputisgreaterwhenyourunthanwhenyouwalk. C.thegravitationalforceisgreateronarunningpersonthanonawalkingperson. D.thegravitationalaccelerationisgreateronarunningpersonthanonawalkingperson. E.arunningpersonhasmoreinertiathanawalkingperson. 38 .Theworkdoneagainstgravityinmovingaboxwithamassof 5 kilogramsthroughaheightof 3 meters is A. 150 joules. B. 150 newtons. C. 15 joules. D. 15 newtons. E. 5 / 3 joules. 39 .Angularmomentumistheproductof A.rotationalinertiaandrotationalvelocity. B.linearmomentumandangle. C.massandvelocity. D.forceandimpulse. E.accelerationandtime. 40 .Whenyoustandinequilibriumononlyonefoot, A.yourcenterofmasswillbedirectlyabovethatfoot. B.yourcenterofmasswillbedirectlyabovetheotherfoot. C.yourcenterofmasswillbedirectlyaboveapointequidistantbetweenyourtwofeet. D.yourrotationalinertiawillbezero.
E.youwillalwaysfallover. 41 .Whenacarroundsacurveathighspeed, A.thetiresexertacentripetalforceontheroad. B.theroadexertsacentripetalforceonthetires. C.thecarexertsacentripetalforceontheroad. D.thecarbodyexertsacentripetalforceonthetires. E.therearenocentripetalforcesinvolved. 42 .Onaspinningdisk,pointsclosertotheouteredgewillhave____pointsnearthecenter. A.thesamerotationalspeedasandgreatertangentialspeedthan B.thesamerotationalspeedasandlowertangentialspeedthan C.thesametangentialspeedasandgreaterrotationalspeedthanD.thesametangentialspeedasand lowerrotationalspeedthanE.lowerrotationalspeedandhighertangentialspeedthan 43 .Amerry-go-roundrotates 9 timeseachminutesuchthatapointonitsrimmovesatarateof 3 m/s.Ata point 2 / 3 ofthewayoutfromthecentertotherim,thetangentialspeedwouldbe____. A. 6 RPM B. 2 m/s C. 3 m/s D. 9 RPM E. 3 RPM 44 .Anemptysoupcanandafullonearerolledside-by-sidedownanincline.Iftheystarttogether,which onewillreachthebottomfirst? A.Theemptycanarrivesfirst. B.Thefullcanarrivesfirst. C.Theywillarrivetogether. D.Itdependsonthediametersofthecans. E.Itdependsonthekindofsoup. 45 .Amassof 1 kilogramistiedtoastringandswunginahorizontalcircleofradius 1 meter;ifthemassis
49 .Whichofthefollowingistrue? A.Someatomsdonotbelongtoanyparticularelement. B.Someatomsbelongtomorethanoneelement. C.Allatomsareidentical. D.Thenumberofprotonsinanatomdetermineswhichelementitis. E.Thenumberofneutronsinanatomdetermineswhichelementitis. 50 .Themassofonehydrogenatomisapproximately A.oneatomicmassunit. B.twoatomicmassunits. C. 12 atomicmassunits. D. 16 atomicmassunits. E. 1 / 2 atomicmassunit. 51 .Anelementwithanatomicnumberof 92 andanatomicmassnumberof 238 wouldhave A. 92 protons, 146 neutrons,and 92 electrons. B. 92 protons, 146 neutrons,and 238 electrons. C. 92 protons, 238 neutrons,and 146 electrons. D. 146 protons, 92 neutrons,and 92 electrons. E. 146 protons, 92 neutrons,and 146 electrons. 52 .Brownianmotionisthe A.randommotionofmicroscopicparticlesbeingbombardedbyevensmalleratomsandmolecules. B.randommotionofatomsandmoleculesbeingbombardedbylargermicroscopicparticles. C.vibrationofatomsandmoleculesinasolid. D.movementofelectronscirculatingwithintheatom. E.verygradualflowofsolidmaterialssuchasglassoverlongperiodsoftime. 53 .Chemicalcombinationsofelementsarecalled
A.mixtures. B.groups. C.shells. D.nuclei. E.compounds. 54 .Whichofthefollowingisalistofelements? A.hydrogen,nitrogen,air B.hydrogen,oxygen,water C.hydrogen,oxygen,nitrogen D.air,nitrogen,oxygen E.water,nitrogen,oxygen 55 .Whereontheperiodictablewouldwefindanelementwithonemoreprotonandonemoreelectronthan silver? A.Justabovesilver. B.Justtotheleftofsilver. C.Justbelowsilver. D.Justtotherightofsilver. E.Noneofthese--thereisnosuchelement. 56 .Densityis A.masstimesvolume. B.massdividedbyvolume. C.massplusvolume. D.volumedividedbymass. E.massminusvolume.
- 1000 cubiccentimetersofwatershouldhaveamassofapproximately____. A. 100 grams
C.increasesbyafactorof 9. D.decreasesbyafactorof 1 / 9. E.increasesbyafactorof 27. 62 .Theweightofadomeproduces A.tensionforcesparalleltothecurveofthedome. B.compressionforcesparalleltothecurveofthedome. C.compressionforcesperpendiculartothecurveofthedome. D.tensionforcesactingvertically. E.tensionforcesactinghorizontally. 63 .Thebuoyantforce A.istheforceofgravityactingonasubmergedobject. B.isthedifferencebetweenasubmergedobject'sweightandtheweightofanequalmassofwater. C.isthenetupwardforceofthesurroundingliquidactingonasubmergedobject. D.isthenetdownwardforceofasubmergedobjectactingonthesurroundingliquid. E.dependsonthedensityofthesubmergedobject. 64 .Thebuoyantforceonablockofwoodfloatinginwater A.isequaltotheweightofavolumeofwaterwiththesamevolumeasthewood. B.isequaltotheweightofthewood. C.isgreaterthantheweightofthewood. D.islessthantheweightofthewood. E.cannotbecalculatedbecausetheblockisnotcompletelysubmerged. 65 .Anobjectwithamassof 1 kgdisplaces 700 mlofwater.Whichofthefollowingistrue? A.Theweightofthisobjectis 10 N. B.Theweightofthisobjectis 7 N. C.Theweightofthisobjectis 3 N.
D.Thebuoyantforceonthisobjectis 3 N. E.Thebuoyantforceonthisobjectis 10 N. 66 .Anobjectwithamassof 1 kgdisplaces 0. 6 kgofwater.Whichofthefollowingistrue? A.Thebuoyantforceonthisobjectis 10 N. B.Thebuoyantforceonthisobjectis 6 N. C.Thebuoyantforceonthisobjectis 4 N. D.Thedensityofthisobjectislessthanthatofwater. E.Thisobjectwillnotsinkinwater. 67 .Thewaterpressureinalakebehindadamdependson A.thevolumeoflakewaterbehindthedam. B.thesurfaceareaofthelake. C.thedistancefromthedamatwhichthepressureismeasured. D.thedepthbelowthesurfaceatwhichthepressureismeasured. E.thenumberoffishinthelake. 68 .Whenairisremovedfromametalcanbyavacuumpump,thecanbucklesinwardsandiscrushed.This occursbecause A.theairpressureontheinsideofthecanisgreaterthantheairpressureontheoutsideofthecan. B.theairpressureontheoutsideofthecanisgreaterthantheairpressureontheinsideofthecan. C.thelossofairmoleculesfrominsidethecanweakensthemetal. D.theoppositesidesoftheemptycanstronglyattracteachother. E.ofBernoulli'sprinciple. 69 .Bernoulli'sprincipleexplainswhy A.ahotairballoonrises. B.liquidrisesinadrinkingstraw. C.airplanesfly. D.deadfishfloat.
E.itwillcontractatalesserratethanasolid. 74 .Ifaflatmetalplatewithacircularholecutthroughitisheated, A.theholegetssmaller. B.theholegetslarger. C.theholestaysexactlythesamesize. D.theholemaygetlargerorsmaller,dependingonthematerialoftheplate. E.theholemaygetlargerorsmaller,dependingonhowmuchtheplateisheated. 75 .Waterhasahigherspecificheatcapacitythaniron.Thismeansthat A.waterismoredensethaniron. B.waterishotterthaniron. C.waterheatsmorerapidlythaniron. D.waterheatsmoreslowlythaniron. E.waterboilsatahighertemperaturethaniron. 76 .Thespecificheatcapacityofwateris 1 caloriepergramperdegreeCelsius.Thismeansthatitwilltake ____calorie(s)toincreasethetemperatureof 10 gramsofwaterby 10 degrees. A. 20 B. 0. 1 C. 1 D. 10 E. 100 77 .Waterreachesitshighestdensityatatemperatureof____degreesCelsius. A. 0 B. 4 C. 10 D.- 10 E.- 4
78 .Whichoftheseisanexampleofheattransferbyconduction? A.Thehandleofametalspoonbecomeshotwhenyouuseittostirapotofsouponthestove. B.Theairneartheceilingisnormallywarmerthanairnearthefloor. C.Youcanboilwaterinamicrowaveoven. D.Youfeeltheheatfromabonfireeventhoughyouareseveralmetersawayfromit. E.Smokerisesupachimney. 79 .Risingairtendsto A.expandandbecomecooler. B.expandandbecomewarmer. C.becomedenserandwarmer. D.becomedenserandcooler. E.maintainaconstantdensityandtemperature. 80 .Radiationisheattransferby A.molecularandelectroniccollisions. B.electromagneticwaves. C.bulkfluidmotions. D.atmosphericcurrents. E.directcontact. 81 .Thepatternformedbyoverlappingwavesinabowwaveisintheshapeoftheletter__. A.B B.U C.V D.I E.T 82 .TheDopplereffectcauses
