2021 FCS 4E Physics Prelim P1

FUCHUNSECONDARYSCHOOLPRELIMINARYEXAMINATION2021SECONDARY4EXPRESS Candidatename Centrenumber Indexnumber Class: PHYSICSPaper1MultipleChoice 6091/01 1September 20211hour AdditionalMaterials:MultipleChoiceAnswerSheet READTHESEINSTRUCTIONSFIRST Writeinsoftpencil.Donotusestaples,paperclips,glueorcorrectionfluid.Writeyourname,Centrenumber,classandindexnumberontheQuestionPaperandAnswerSheetinthespacesprovidedunlessthishasbeendoneforyou. Thereare fortyquestionsonthispaper.Answer allquestions.Foreachquestion,therearefourpossibleanswersA, B, CandD. Choosethe oneyouconsidercorrectandrecordyourchoicein soft pencilontheseparateAnswerSheet. ReadtheinstructionsontheAnswer Sheet verycarefully. Eachcorrectanswerwillscoreonemark.Amarkwillnotbedeductedforawronganswer.AnyroughworkingshouldbedoneinthisQuestionPaper.Theuseofanapprovedscientificcalculatorisexpected,whereappropriate.

Nameofsetter:MdmRohizanTalib Thisdocumentconsistsof 16pagesand0blankpage. 1 AnN95maskisabletoremove95%ofparticlesintheairfrompassingthroughit. Whatistheaveragesizeoftheseparticles? A 300mm B 300µm C 300nm D 0.3nm 2 Apieceof copperpipehasanapproximatelengthof 70cmandanapproximateinternaldiameterof1cm. Whichinstrumentsaremostsuitableformeasuringaccuratelytheinternaldiameterandthelength? A calipersandmicrometerB calipersandruleC ruleandmicrometerD ruleandtape 3 Thegraphshowshowtheheightofafallingobjectchangeswithtime. Whichofthefollowingdescribethemotionoftheobjectinthefinal1.5s? A Thespeedoftheobjectdecreasesasitreachestheground.B Thespeedoftheobjectincreasesasitreachestheground.C Thespeedoftheobjectremainsconstantasitreachestheground.D Theaccelerationoftheobjectdecreasesasitreachestheground. 2

4 Atraintravelsnorthataconstantvelocityof20m/salongastraight,horizontaltrack. Attimet=5.0s,itsvelocitystartstochangeanditsaccelerationis-1.5m/s 2 . Howisthetrainmovingattimet=15.0s? A travellingnorthwithdecreasingspeedB travellingnorthwithincreasingspeedC travellingsouthwithdecreasingspeedD travellingsouthwithincreasingspeed 5 Thepropellerofaboatpusheswaterbackwardswithaforceof2000N. Theboatmovesthroughthewateragainstatotalresistiveforceofa1800N. Whatisthemagnitudeoftheresultantforceontheboat? A 200N B 1800N C 2000N D 3800N 6 AstationaryobjectOisacteduponbythreeforces. WhatisthevalueofforceX? A 1N B 3.5N C 5N D 7N 3

7 Ablockofwoodisatrestonaslopingramp.Theforceactingontheblockaretheweight Woftheblock,thefriction FbetweentheblockandtherampandthenormalforceNexertedbytheramp. Whichfree-bodydiagramiscorrect? A B C D 8 TwoglassmarblesPandQareatrestonafrictionlesssurface. ThesameforceFactsonPandonQforthesametimet. ThevolumeofQismorethanthatofP. Whichquantityisthesameforbothobjects? A densityB kineticenergygainedC massD weight 4

9 Asteelballisreleasedfromrestjustbelowthesurfaceofthickoilinacylinder. Theballfallswithterminalvelocitybeforeitreachesthebottomofthecylinder. What happenstotheweight of theball andtheresultant forceontheball asitapproachesterminalvelocity? weight resultantforceA increases decreasesB increases increasesC staysthesame decreasesD staysthesame increases 10 Ahorizontalpoleisattachedtothewallofabuilding. ThereisapivotPatthewallandacableisconnectedfromtheendofthepoletoapointhigherupthewall. ThereisatensionforceFinthecable. WhatisthemomentoftheforceFaboutthepivotP? A Fxd B Fxh C Fxl D Fxs 5

11 Amaniscarryingaloadontheendofauniformpoleoflength0.90mofweight10N.HereststhepoleonhisshoulderatpointPwhichactsasapivot. HekeepsthepoleinbalancewithadownwardforceFwithhishand,asshown. WhatistheforceFappliedbythemantobalancethepole? A 34N B 40N C 42N D 50N 12 Abuilderhasfourpilesofbricks. Eachbrickhasaweightof10N. Thedimensionofeachbrickisasshown. Whichpileofbricksproducesapressureof2500Paontheground? 6

13 Thediagramshowsthedifferenceinliquidlevelsinamanometerthatisconnectedtoagas. Whichtwoquantitiesneedtobeknowninordertocalculatetheexcesspressureofthegassupplycomparedtoatmosphericpressure? A theheight handthedensityofthegasB theheight handthedensityoftheliquidC thelengthlandcross-sectionalareaofthetubeD thelengthlandthedensityoftheliquid 14 Acraneusesapetrolenginetoliftaheavyrock. What istheoverallenergyconversioninthesystemwhentherockismovingatasteadyrate? A chemicalpotentialenergyintogravitationalpotentialenergyB chemicalpotentialenergyintokineticenergyC gravitationalpotentialenergyintokineticenergyD kineticenergyintogravitationalpotentialenergy 15 Atruckistravellingatasteadyspeedalonganexpressway. Theforwardforceis4000Nandthepowerproducedis100kJ/s. Whatisthespeedatwhichthetruckistravelling? A 0.4m/s B 4m/s C 2.5m/s D 25m/s 7

16 Whathappenstomoleculesofcarbondioxidegaswhendryiceisformed? A Theyattracteachothermorestrongly.B Theygetsmaller.C Theystopmoving.D Theyexpand. 17 Apartiallyinflatedballoonisplacedinsideabelljar. Thebelljarisconnectedtoavacuumpump. Thevacuumpumpisswitchedonandairispumpedoutofthebelljar. Thepressureinthebelljarisdecreased. Whathappenstothepressureandtothevolumeofthegasinsidetheballoon? pressure volumeA decreases decreasesB decreases increasesC increases decreasesD increases increases 18 Thediagramshowsamercury-in-glassthermometer.Thedistancebetweenthe–10ºCandthe110ºCmarkingsis25cm. At whichtemperatureistheendof themercurythreadadistanceof15cmfromthe–10ºCmark? A 50ºC B 60ºC C 62ºC D82ºC 8

19 Thehousesintemperatecountrieshaveradiatorunits. Theradiatorunitsareswitchedonduringwinter. Theradiatorunitsarealwaysplacedonthefloorintherooms. Whichstatementexplainswhyradiatorunitsareplacedonthefloor? A Heatedairbecomesdenserandsinks.B Heatedairbecomesdenserandrises.C Heatedairbecomeslessdenseandsinks.D Heatedairbecomeslessdenseandrises. 20 Avacuumflaskcontainshotliquid. Thediagramshowsasectionofthedoublewallofavacuumflask. WhatcolourforsurfaceRandforsurfaceSmostreducestheheatlossfromtheflask? R SA black blackB black silverC silver blackD silver silver 21 Ablockofironofmass50gisataroomtemperatureof25 0 C. Whichrowdescribesanotherblockofironofmass100gatthesametemperature? specificheatcapacity heatcapacity internalenergyA more same moreB same more moreC more same sameD same more same 9

22 Abuoyoscillatesverticallyasawaterwavepasses. Thegraphshowshowthedisplacementoftheboatfromitsequilibriumpositionvariestime Whichcharacteristicsofthewavecanbededucedfromthisgraph? A Itsamplitudeis2.0manditsfrequencyis0.05Hz.B Itsamplitudeis2.0manditswavelengthis20m.C Itsamplitudeis2.0manditsfrequencyis20s.D Itsamplitudeis4.0manditsperiodis20s. 23 Whichrowgivesanexampleofatransversewaveandalongitudinalwave? transversewave longitudinalwaveA light ultrasoundB microwaves radiowavesC radiowaves microwavesD ultrasound light 10