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 decreas