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2212-6510 13 pages M12/4/PHYSI/SPM/ENG/TZ1/XX Thursday 10 May 2012 (afternoon) PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES Do not open this examination paper until instructed to do so. Answer all the questions. For each question, choose the answer you consider to be the best and indicate your choice on the answer sheet provided. A clean copy of the Physics Data Booklet is required for this paper. The maximum mark for this examination paper is [30 marks]. 45 minutes © International Baccalaureate Organization 2012 22126510
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Page 1: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

2212-6510 13 pages

M12/4/PHYSI/SPM/ENG/TZ1/XX

Thursday 10 May 2012 (afternoon)

PHYSICSSTANDARD LEVELPAPER 1

INSTRUCTIONS TO CANDIDATES

• Do not open this examination paper until instructed to do so.• Answer all the questions.• For each question, choose the answer you consider to be the best and indicate your choice

on the answer sheet provided.• A clean copy of the Physics Data Booklet is required for this paper.• The maximum mark for this examination paper is [30 marks].

45 minutes

© International Baccalaureate Organization 2012

22126510

Page 2: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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1. Whatistheorderofmagnitudeofthemass,inkg,ofanapple?

A. 10–3

B. 10–1

C. 10+1

D. 10+3

2. The diagram below shows the forces acting on a block ofweight W as it slides down a slope.Theanglebetweentheslopeandthehorizontalisθ,thenormalreactionforceontheblockfromtheslopeisNandfrictionisnegligible.

N

W

θ

θ

θ

Whichofthefollowinggivestheresultantforceontheblock?

A. W sinθ

B. W cosθ

C. N sinθ

D. N cosθ

Page 3: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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3. Thevelocity–timegraphforanacceleratingobjectthatistravellinginastraightlineisshownbelow.

velocity/ms–1

5.0

4.0

3.0

2.0

1.0

00 1.0 2.0 3.0 4.0 5.0

time/s

Whichofthefollowingisthechangeindisplacementoftheobjectinthefirst5.0seconds?

A. 25.0m

B. 12.5m

C. 5.0m

D. 1.0m

Page 4: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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4. Anobjectfallsverticallyfromrest.Airresistanceactsontheobjectanditreachesaterminalspeed.Whichofthefollowingisthedistance–timegraphforitsmotion?

A.

distance

00 time

B.

distance

00 time

C.

distance

00 time

D.

distance

00 time

Page 5: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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5. ApendulumswingsbackandforthinacirculararcbetweenXandY.

X Y

Thependulumbobis

A. alwaysinequilibrium.

B. onlyinequilibriumatXandY.

C. inequilibriumasitpassesthroughthecentralposition.

D. neverinequilibrium.

Page 6: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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6. Ablockofmass m ismovingatconstantvelocity v alonga frictionless surface that isheighth abovetheground.

v

h

Whichexpressiongivestheworknecessarytomaintaintheconstantvelocity?

A. mgh

B. 212

mv

C. 212

mgh mv+

D. zero

7. Whichofthefollowingisanelasticcollision?

A. Tworailwaytruckscollideandtheylinktogether.

B. Tworailwaytruckscollideandtheydonotlinktogether.

C. Twogasmoleculescollideandeachchangesdirection.

D. Twogasmoleculescollideandabondisformedbetweenthem.

8. Acarmovesatconstantspeedaroundahorizontalcirculartrack.Theresultantforceonthecarisalwaysequalto

A. theforwardforcefromtheengine.

B. thesidewaysfrictionbetweenthetyresandthetrack.

C. theweightofthecar.

D. zero.

Page 7: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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9. Thetotalpotentialenergyandrandomkineticenergyofthemoleculesofanobjectisequaltothe

A. heatenergyintheobject.

B. internalenergyoftheobject.

C. thermalenergyintheobject.

D. workstoredintheobject.

10. Whichofthefollowingcorrectlydistinguishesbetweentheevaporationandtheboilingofaliquidunderatmosphericpressure?

Evaporation Boiling

A. takesplaceatonefixedtemperature occursatthesurfaceoftheliquid

B. takesplaceatalltemperatures occursatthesurfaceoftheliquid

C. takesplaceatonefixedtemperature occursthroughoutthebodyoftheliquid

D. takesplaceatalltemperatures occursthroughoutthebodyoftheliquid

11. AnidealgashasanabsolutetemperatureT. Theaveragerandomkineticenergyofthemoleculesofthegasis

A. independentofT.

B. equaltoT. C. proportionaltoT.

D. inverselyproportionaltoT.

Page 8: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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12. Anobjectisundergoingsimpleharmonicmotion(SHM)aboutafixedpointP.ThemagnitudeofitsdisplacementfromP isx.Whichofthefollowingiscorrect?

Magnitude of resultant force Direction of resultant force

A. proportionaltox towardsP

B. inverselyproportionaltox towardsP

C. proportionaltox awayfromP

D. inverselyproportionaltox awayfromP

13. Anobjectundergoessimpleharmonicmotion(SHM).Thetotalenergyoftheobjectisproportionalto

A. theamplitudeoftheoscillations.

B. thetimeperiodoftheoscillations.

C. thefrequencyoftheoscillations.

D. themassoftheobject.

14. Whatregionoftheelectromagneticspectrumincludeswavesofwavelength5×10–8m?

A. X-ray

B. Ultraviolet

C. Infrared

D. Microwave

Page 9: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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15. Arayoflighttravelsfromavacuumintoglassasshownbelow.

vacuum

glass

Inglass,lighthasspeedv .Inavacuum,lighthasspeedc.Whichofthefollowinggivestherefractiveindexofglass?

A.cv

B.vc

C. sinsin

cv

D. sinsin

vc

16. Theampereisdefinedintermsof

A. powerdissipatedinawireofknownlength,cross-sectionalareaandresistivity.

B. potentialdifferenceacrossaresistanceofknownvalue.

C. numberofelectronsflowingpastapointinacircuitinagiventime.

D. forceperunitlengthbetweenparallelcurrent-carryingconductors.

17. Abatteryofemf6.0Visconnectedtoa2.0Ωresistor.Thecurrentinthecircuitis2.0A.Theinternalresistanceofthebatteryis

A. zero.

B. 1.0Ω.

C. 3.0Ω.

D. 4.0Ω.

Page 10: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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18. Whichofthefollowinggivestheresistancesofanidealammeterandanidealvoltmeter?

Resistance of ideal ammeter Resistance of ideal voltmeter

A. infinite infinite

B. zero infinite

C. infinite zero

D. zero zero

19. AmassatpointX givesrisetoagravitationalfieldstrengthg atpointPasshownbelow.

X P

AnidenticalmassisplacedatpointYasshownbelow.

X P Y

TheresultantgravitationalfieldstrengthatPisnow

A. greaterthan2g.

B. between2gandg.

C. betweengandzero.

D. zero.

20. Theelectricfieldstrengthbetweentwooppositelychargedparallelplates

A. hasthesamevalueeverywherebetweenthetwoplates.

B. decreasesfromthepositiveplatetothenegativeplate.

C. islargerattheedgesthaninthecentre.

D. issmallerattheedgesthaninthecentre.

Page 11: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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21. Threeparallelwires,X,YandZ,carryequalcurrentsintothepage.

WhicharrowrepresentsthedirectionofthemagneticforceonwireZ?

A.

B.

C.

D.

22. Whencomparedwithbetaparticlesandgamma-rayphotons,alphaparticleshavethegreatest

A. mass.

B. penetratingpower.

C. rangeinair.

D. speed.

23. Whichstatementcorrectlydescribestheprocessofnuclearfusion?

A. Thejoiningtogetheroftwosmallatomstocreatealargeratom.

B. Thesplittingupofalargeatomtocreatetwosmalleratoms.

C. Thejoiningtogetheroftwosmallnucleitocreatealargernucleus.

D. Thesplittingupofalargenucleustocreatetwosmallernuclei.

Page 12: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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24. Thefractionoftheworld’senergyconsumptionprovidedbynuclearenergyis

A. lessthan0.2%.

B. between0.2%and2%.

C. between2%and20%.

D. greaterthan20%.

25. The burning of fossil fuels in power stations produces greenhouse gases. Another potentialenvironmentalproblemisthat

A. theemissionscandestroytheozonelayer.

B. theemissionscancauseacidrain.

C. themaximumefficiencyisverylow.

D. theenergydensityofthefuelsislowcomparedtorenewableresources.

26. Inanuclearpowerstation,inordertoincreasethechancesofachainreaction

A. kineticenergyisremovedfromtheneutrons.

B. kineticenergyisgiventotheneutrons.

C. someneutronsareabsorbed.

D. extraneutronsareadded.

27. Theoriginalsourceoftheelectricalpowerproducedbyawindgeneratoris

A. theSun’sradiatedenergy.

B. thegravitationalenergyoftheSunandtheMoon.

C. nuclearenergystoredwithinatomsintheEarth’satmosphere.

D. theEarth’sinternalenergy.

Page 13: PHYSICS STANDARD LEVEL PAPER 1...PHYSICS STANDARD LEVEL PAPER 1 INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions.

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28. Increasingthetemperatureofablack-bodywillhavethefollowingeffectonitsemissionspectrum.

Total power radiated Peak wavelength of radiation

A. increases decreases

B. staysthesame decreases

C. increases staysthesame

D. staysthesame staysthesame

29. Anaturalprocessthatcouldcauseanincreaseinglobalwarmingis

A. anincreaseintheradiusoftheEarth’sorbitaroundtheSun.

B. anincreaseintheabsorptionofcarbondioxidebyseawater.

C. adropinmeansea-level.

D. deforestationasaresultofnaturalecosystemchanges.

30. Whatistheunitforthecoefficientofvolumeexpansion?

A. m3K–1

B. m3

C. K

D. K–1


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