2021 FJS 4E Phy Prelim P1

FAJARSECONDARYSCHOOL2021PRELIMINARYEXAMINATIONSSECONDARY4EXPRESS CANDIDATENAME CLASS INDEXNUMBERN/OLEVELINDEXNUMBER PHYSICSPaper1MultipleChoice AdditionalMaterials:OTASSheet 6091/01 Date: 14September2021Duration:1Hour READTHESEINSTRUCTIONSFIRST Writeinsoftpencil.Donotusestaples,paperclips,highlighters,glueorcorrectionfluid.WriteyournameandindexnumberontheQuestionPaperandOTASSheetinthespacesprovided. Therearefortyquestionsonthispaper.Answer allquestions.ForeachquestiontherearefourpossibleanswersA, B, CandD.Choosetheoneyouconsidercorrectandrecordyourchoiceinsoft pencilontheseparateOTASSheet. Eachcorrectanswerwillscoreonemark.Amarkwillnotbedeductedforawronganswer.Anyroughworkingshouldbedoneinthisbooklet.Theuseofanapprovedscientificcalculatorisexpected,whereappropriate. Donot openthisdocument till permissionisgiven. Thisdocumentconsistsof 24printedpagesand0blankpages.

2 1 Apendulumhasaperiodof 1.0s. Astopwatchisstartedwhenthependulumisverticalandismovingtotherightasshown. Whichdiagramshowsthepositionanddirectionofthependulum2.5slater? 2 Asmallcylinderisrolledalongarulerandcompletestworevolutions. Whatisthecircumferenceofthecylinder? A 4.4cm B 5.2cm C 8.7cm D 10.1cm

3 3 ThediagramshowsasatellitethatismovingatauniformrateinacircularorbitaroundtheEarth. Whichstatementdescribesthemotionofthissatellite? A Itisacceleratingbecauseitsspeedischanging. B Itisacceleratingbecauseitsvelocityischanging. C Itisnotacceleratingbutitsspeedischanging. D Itisnotacceleratingbutitsvelocityischanging. 4 Askydiverjumpsofffromanaeroplaneandreachesterminalvelocityaftersometime. Whichgraphshowshowthedistanceoftheskydiverchangeswithtime? [TurnOver

4 5 Thediagramshowstwoblocks. BlockPhasadensitytwotimesthatofblockQ. Whichstatementaboutthemassoftheblocksiscorrect? A BlocksPandQhavethesamemass. B 8blocksofPhavethesamemassas9blocksofQ. C 9blocksofPhavethesamemassas8blocksofQ. D 16blocksofPhavethesamemassas9blocksofQ. 6 Whenaresultantforceisappliedtoabody,severaleffectsarepossible. Whicheffectcouldnotoccur? A Thebodychangesdirectionataconstantspeed. B Thebodyrotatesaboutafixedpoint. C Thebodyslowsdown. D Themassofthebodydecreases. 7 Apullingforceof20Nisexertedonablockofwoodofmass2.0kg. Iftheblockacceleratesat5.0m/s 2 ,whatisthefrictionalforceactingonthewood? A 1.0N B 8.0N

5 C 10N D 30N8 Whichsituationillustratestheeffectofinertia? A Aforceappliedtotheshoppingcartgivesthecartanacceleration. B Amovingshoppingcartwilleventuallycometorest. C Itisdifficulttostopamovingshoppingcartfullofgroceriesimmediately. D Thegroceriesinsideashoppingcartjerkforwardwhentheshoppingcartstartsmovingforward. 9 Atoybirdbalancesonthefingerofagirlasshowninthediagram. Whatistheuseofthepaperclips? A Tochangetheweightofthetoyforstability. B Toincreasethesurfaceareaofthetoyforstability. C Tolowerthecentreofgravityofthetoyforstability. D Toraisethecentreofgravityofthetoyforstability. 10 Anobjectfallsfromthetopofabuildingthatis25mhigh.Airresistanceisnegligible. [TurnOver

6 Whatisthespeedoftheobjectwhenithitstheground? A 10m/s B 22m/s C 25m/s D 625m/s 11 Amotorisusedtoliftaloadof40N. Thepowerofthemotoris40Wandthesystemis20%efficient. Howlongdoesittakethemotortolifttheloadthrough0.50m? A 0.50s B 2.5s C 5.0s D 25s

7 12 Thediagramshowsasimplehydraulicsystem. Whichcomparisonistrue? A TheforceFisthesameastheweightoftheload. B TheforceFisgreaterthantheweightoftheload. C ThepressureonpistonPisthesameasthepressureonpistonQ. [TurnOver

8 D ThepressureonpistonPissmallerthanthepressureonpistonQ. 13 Thediagramshowsasimplemercurybarometeralongsideamercurymanometer.Themanometercontainssometrappedgas. Whatisthepressureofthetrappedgas?

9 A 10cmofmercury B 50cmofmercury C 66cmofmercury D 86cmofmercury 14 Thediagramshowsaliquid-in-glassthermometer.At0°C,thelengthoftheliquidcolumnis2.0cm.At100°C,thelengthoftheliquidcolumnis22.0cm. Whatisthelengthoftheliquidcolumnat40°C? A 6.0cm B 8.0cm C 8.8cm D 10.0cm [TurnOver

10 15 WhentheBrownianmotionofsmokeparticlesinairisobservedwithamicroscope,brightspecksoflightareseen. Thesebrightspecksoflightarereflectionsfrom A airmoleculesonly,movingrandomly. B bothsmokeparticlesandairmolecules,movingrandomly. C smokeparticlesonly,movingrandomly. D smokeparticlesonly,vibrating. 16 Whichstatementaboutthermalradiationiscorrect? A Inavacuum,thermalradiationtravelsatthespeedoflight. B Thermalradiationisalongitudinalwave. C Thermalradiationtravelsasanultra-violetwave. D Whitesurfacesarebetteremittersofthermalradiationthanblacksurfaces. 17 Asliceofbreadisplacedunderared-hotelectricgrilltomaketoast. Howisthermalenergytransferredfromthegrilltothebread? A radiationonly B conductionandradiation C convectionandradiation D conduction,convectionandradiation 18 Anightstorageheatercontainsalargeblockofmaterialthatisheatedelectricallyduringthenight.Duringthedaytheblockcoolsdown,releasingthermalenergyintotheroom.