Phss gher eve Paper - IB Documents PAST PAPERS...forces on the train are the engine force and a...
Transcript of Phss gher eve Paper - IB Documents PAST PAPERS...forces on the train are the engine force and a...
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M16/4/PHYSI/HPM/ENG/TZ0/XX
© International Baccalaureate Organization 201623 pages
PhysicsHigher levelPaper 1
1 hour
Friday 6 May 2016 (morning)
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.yy A clean copy of the physics data booklet is required for this paper.
• The maximum mark for this examination paper is [40 marks].
2216 – 6501
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– 2 –
1. Aspherefitsinsideacube.
Thelengthofthecubeandthediameterofthesphereare10.0±0.2cm.
Whatistheratio percentage uncertaintypercentage uncer
of the volume of the spherettainty cubeof the volume of the
?
A. π
34
B. 1
C. 2
D. 8
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– 3 –
Turn over
2. Anaircraftismovinghorizontally.Aparachutistleavestheaircraftandafewsecondslateropensherparachute.Whichgraphshowsthevariationoftheverticalspeedvwithtimetfortheparachutistfromthetimesheleavestheaircraftuntiljustbeforelanding?
A.v
t00
B.v
t00
C.v
t00
D.v
t00
3. Anobjectofmassmrestsonahorizontalplane.Theangleθ thattheplanemakeswiththehorizontalisslowlyincreasedfromzero.Whenθ = θ0,theobjectbeginstoslide.WhatarethecoefficientofstaticfrictionμsandthenormalreactionforceNoftheplaneatθ = θ0?
μs N
A. sinθ0 mgcosθ0
B. tanθ0 mgsinθ0
C. sinθ0 mgsinθ0
D. tanθ0 mgcosθ0
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– 4 –
4. Aballwithmassmmoveshorizontallywithspeedu.Theballhitsaverticalwallandreboundsintheoppositedirectionwithspeedv < u.ThedurationofthecollisionisT.Whatarethemagnitudeoftheaverageforceexertedbythewallontheballandthelossofkineticenergyoftheball?
Average force Loss of kinetic energy
A.m u v
T( )+ m u v( )2 2
2−
B.m u v
T( )+ m u v( )− 2
2
C.m u v
T( )− m u v( )2 2
2−
D.m u v
T( )− m u v( )− 2
2
5. Atrainonastraighthorizontaltrackmovesfromrestatconstantacceleration.Thehorizontalforcesonthetrainaretheengineforceandaresistiveforcewhichincreaseswithspeed. WhichgraphrepresentsthevariationwithtimetofthepowerPdevelopedbytheengine?
A.P
t00
B.P
t00
C.P
t00
D.P
t00
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– 5 –
Turn over
6. Thegraphshowshowtheaccelerationaofanobjectvarieswithdistancetravelledx.
a/ms–2
30
25
20
15
10
5
00 5 10 15 20 25 30 x/m
Themassoftheobjectis3.0kg.Whatisthetotalworkdoneontheobject?
A. 300J
B. 400J
C. 1200J
D. 1500J
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–6–
7. Acontainerwith0.60kgofaliquidsubstanceisplacedonaheaterattimet = 0.Thespecificlatentheatofvaporizationofthesubstanceis200kJkg–1.ThegraphshowsthevariationofthetemperatureTofthesubstancewithtimet.
T
t / s0
0 10 20 30 40 50 60
Whatisthepoweroftheheater?
A. 1200W
B. 3000W
C. 4800W
D. 13300W
8. Underwhatconditionsofdensityandpressureisarealgasbestdescribedbytheequationofstateforanidealgas?
A. Lowdensityandlowpressure
B. Lowdensityandhighpressure
C. Highdensityandlowpressure
D. Highdensityandhighpressure
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– 7 –
Turn over
9. HorizontallypolarizedlightofintensityI0entersapolarizerPwhosepolarizationaxismakesanangleofθdegreeswiththehorizontal.LightfromPisthenincidentonapolarizerAwithfixedverticalpolarizationaxis.
θ
polarizer A
polarizer P
horizontally polarized light intensity I0
transmitted light intensity I
Theangleθisvariedfrom0to90degrees.Whichofthefollowingrepresentsthevariationwithθ oftheintensityIofthelighttransmittedthroughA?
A.II0
0.50.40.30.20.10.0
B.II0
0.50.40.30.20.10.0
0 45 90 0 45 90θ / ° θ / °
C.II0
0.50.40.30.20.10.0
D.II0
0.50.40.30.20.10.0
0 45 90 0 45 90θ / ° θ / °
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–8–
10. ApipeoflengthLhastwoopenends.AnotherpipeoflengthL′hasoneopenendandoneclosedend.
Thefrequencyofthefirstharmonicofbothpipesisthesame.Whatis′L
L?
A. 2
B. 32
C. 1
D. 12
11. Alightraypassesfromairtowaterasshown.
airwater
lightray
Whatarethechangeinthewavelengthofthelightwaveandthechangeintheangletheraymakeswiththenormaltothesurface?
Wavelength Angle with normal
A. increases increases
B. increases decreases
C. decreases increases
D. decreases decreases
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–9–
Turn over
12. Acircuitconsistsofacellofelectromotiveforce(emf)6.0Vandnegligibleinternalresistanceconnectedtotworesistorsof4.0Ω.
A
6.0 V
4.0 Ω4.0 Ω V
Theammeterhasresistanceequalto1.0Ωandthevoltmeterisideal.Whatarethereadingsoftheammeterandthevoltmeter?
Ammeter Voltmeter
A. 2.0A 3.0V
B. 3.0A 3.0V
C. 2.0A 4.0V
D. 3.0A 4.0V
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–10–
13. AwirecarryingacurrentIisplacedinaregionofuniformmagneticfieldB,asshowninthediagram.
B
I
L
ThedirectionofthefieldBisoutofthepageandthelengthofthewireisL.Whatiscorrectaboutthedirectionandmagnitudeoftheforceactingonthewire?
Direction Magnitude
A. equaltoBIL
B. smallerthanBIL
C. equaltoBIL
D. smallerthanBIL
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–11–
Turn over
14. Amassconnectedtooneendofarigidrodrotatesatconstantspeedinaverticalplaneabouttheotherendoftherod.
rod
mass
Theforceexertedbytherodonthemassis
A. zeroeverywhere.
B. constantinmagnitude.
C. alwaysdirectedtowardsthecentre.
D. aminimumatthetopofthecircularpath.
15. Asimplemodelofanatomhasfiveenergylevels.Whatisthemaximumnumberofdifferentfrequenciesintheemissionspectrumofthatatom?
A. 4
B. 6
C. 10
D. 25
16. Whichofthefollowingliststhreefundamentalforcesinincreasingorderofstrength?
A. electromagnetic,gravity,strongnuclear
B. weaknuclear,gravity,strongnuclear
C. gravity,weaknuclear,electromagnetic
D. electromagnetic,strongnuclear,gravity
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–12–
17. Patternsingraphshelpscientistsmakepredictions.Whatcanbededucedfromagraphofneutronnumberversusprotonnumberforallstablenuclides?
A. Theshort-rangenatureofthestrongnuclearforce
B. Theincreaseofthebindingenergypernucleonwithprotonnumber
C. Theexistenceofquarksandleptons
D. Theexistenceofalphadecay
18. Asolarpanelhassurfacearea0.40m2andefficiency50%.Theaverageintensityofradiationreachingthesurfaceofthepanelis0.25kWm–2.Whatistheaveragepoweroutputfromanarrayof10ofthesesolarpanels?
A. 0.5W
B. 5W
C. 50W
D. 500W
19. Whatisthecorrectorderofenergytransformationsinacoalpowerstation?
A. thermal → chemical → kinetic → electrical
B. chemical → thermal → kinetic → electrical
C. chemical → kinetic → thermal → electrical
D. kinetic → chemical → electrical → thermal
20. Ablackbodyofsurface1.0m2emitselectromagneticradiationofpeakwavelength2.90×10–6m.Whichofthefollowingstatementsaboutthebodyarecorrect?
I. Thetemperatureofthebodyis1000K.
II. Theenergyradiatedbythebodyinonesecondis5.7×104J.
III. Thebodyisaperfectabsorberofelectromagneticradiation.
A. IandIIonly
B. IandIIIonly
C. IIandIIIonly
D. I,IIandIII
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–13–
Turn over
21. Amassisconnectedtoaspringonafrictionlesshorizontalsurfaceasshown.
springmass
surface
Thespringisextendedbeyonditsequilibriumlengthandthemassexecutessimpleharmonicmotion(SHM).Whichofthefollowingisindependentoftheinitialdisplacementofthespring?
A. Theangularfrequencyoftheoscillation
B. Thetotalenergyofthemass
C. Theaveragespeedofthemass
D. Themaximumkineticenergyofthemass
22. Asingle-slitdiffractionexperimentisperformedusinglightofdifferentcolours.Thewidthofthecentralpeakinthediffractionpatternismeasuredforeachcolour.Whatistheorderofthecoloursthatcorrespondstoincreasingwidthsofthecentralpeak?
A. red,green,blue
B. red,blue,green
C. blue,green,red
D. green,blue,red
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–14–
23. Inadouble-slitinterferenceexperiment,thefollowingintensitypatternisobservedforlightofwavelengthλ.
intensity of light / arbitrary units
diffraction angle / rad0.02 0.04 0.06–0.02–0.04–0.06
0.2
0.4
0.6
0.8
1.0
0
Thedistancebetweentheslitsisd.Whatcanbededucedaboutthevalueoftheratio λdandthe
effectofsingle-slitdiffractioninthisexperiment?
λλd
Single-slit diffraction
A. 100 non-negligible
B. 0.01 non-negligible
C. 100 negligible
D. 0.01 negligible
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–15–
Turn over
24. AsimplependulumhasmassMandlengthl.TheperiodofoscillationofthependulumisT.Whatistheperiodofoscillationofapendulumwithmass4Mandlength0.25l?
A. 0.5T
B. T
C. 2T
D. 4T
25. Atrainmovesatconstantspeedwhilstemittingasoundwaveoffrequencyf0.At t = t0thetrainpassesthroughastation.Whichgraphshowsthevariationwithtimetofthefrequencyfofthesoundwaveasmeasuredbyanobserverstandingonthestationplatform?
A.
t
f
f0
t0
B.
t
f
f0
t0
C.
t
f
f0
t0
D.
t
f
f0
t0
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–16–
26. Anegativechargemovesinanelectricfield.Equipotentiallinesforthefieldandfourpossiblepathsofthechargeareshown.Whichpathcorrespondstothelargestworkdoneonthechargebythefield?
A.
C.
D.
V = 10 V
V = 20 V
V = 30 V
B.
27. Inanexperiment,oildropletsofmassmandchargeqaredroppedintotheregionbetweentwohorizontalparallelplates.TheelectricfieldEbetweentheplatescanbeadjusted.Airresistanceisnegligible.Whichiscorrectwhenthedropletsfallverticallyatconstantvelocity?
A. E = 0
B. E < mgq
C. E = mgq
D. E > mgq
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–17–
Turn over
28. Asatelliteorbitsaplanet.WhichgraphshowshowthekineticenergyEK,thepotentialenergyEP andthetotalenergyEofthesatellitevarywithdistancexfromthecentreoftheplanet?
A.
00
energy
EP
EEK
x
B.
x00
energy
EK
EP
E
C.
00
energy
E
EP
EK
x
D.
x00
energy
EEP
EK
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–18–
29. AcoilofareaA isplacedinaregionofuniformhorizontalmagneticfieldB.Att = 0,thecoilstartstorotatewithconstantangularspeedωaboutahorizontalaxis.
X
Y
B
axis
WhatistheemfbetweenXandY?
A. zero
B. ωABsinωt
C. ABcosωt
D. − ωABsinωt
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–19–
Turn over
30. ThediagramshowsaconductingrodoflengthLbeingmovedinaregionofuniformmagnetic fieldB.Thefieldisdirectedatrightanglestotheplaneofthepaper.Therodslidesonconductingrailsataconstantspeedv.AresistorofresistanceRconnectstherails.
Rv
B
L
rodrail
Whatisthepowerrequiredtomovetherod?
A. zero
B. vBR
L
C. v BR
2 2 2L
D. v BR
2 2 2
2
L
31. Analternatingcurrent(ac)powersupplygeneratesanemfwithpeakamplitudeV0anddeliversanaveragepowerP .Whatistherootmeansquare(rms)currentdeliveredbythesupply?
A.PV2 0
B.PV2 0
C. 2
0
PV
D.2
0
PV
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–20–
32. Afull-wavedioderectificationcircuitismodifiedwiththeadditionofacapacitorinparallelwiththeloadresistor.Thecircuitisusedtorectifyasinusoidalsignalofperiod6.3ms.WhichgraphshowshowthepotentialdifferenceVacrosstheloadvarieswithtime?
A. B.V
2 4 6 8 10 120
0
V
2 4 6 8 10 120
0t/ms t/ms
C. D.V
2 4 6 8 10 120
0
V
00 2 4 6 8 10 12
t/ms t/ms
33. Aparallel-platecapacitorisconnectedtoacellofconstantemf.Thecapacitorplatesarethenmovedfurtherapartwithoutdisconnectingthecell.Whatarethechangesinthemagnitudeoftheelectricfieldbetweentheplatesandinthecapacitanceofthecapacitor?
Magnitude of the electric field Capacitance
A. increases increases
B. increases decreases
C. decreases increases
D. decreases decreases
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–21–
Turn over
34. Threeidenticalcapacitors,eachofcapacitanceC,areconnectedasshown.
C C
C
Whatisthetotalcapacitanceofthecombination?
A. 23
C
B. C
C. 32
C
D. 3C
35. Whichofthefollowingexperimentsprovidesevidencefortheexistenceofmatterwaves?
A. Scatteringofalphaparticles
B. Electrondiffraction
C. Gammadecay
D. Photoelectriceffect
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– 22 –
36. ThegraphsshowthevariationwithdistancexofthesquareoftheamplitudeΨ2ofthewavefunctionofaparticle.Whichgraphcorrespondstoaparticlewiththelargestuncertaintyinmomentum?
A. B.
Ψ2 Ψ2
0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0x/arbitraryunits x/arbitraryunits
C. D.Ψ2 Ψ2
0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0x/arbitraryunits x/arbitraryunits
37. DeviationsfromRutherfordscatteringaredetectedinexperimentscarriedoutathighenergies.Whatcanbededucedfromthesedeviations?
A. Theimpactparameterofthecollision
B. Theexistenceofaforcedifferentfromelectrostaticrepulsion
C. Thesizeofalphaparticles
D. Theelectricfieldinsidethenucleus
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– 23 –
38. Differentmetalsurfacesareinvestigatedinanexperimentonthephotoelectriceffect.Agraphofthevariationofthemaximumkineticenergyofphotoelectronswiththefrequencyoftheincidentlightisdrawnforeachmetal.Whichstatementiscorrect?
A. Allgraphshavethesameinterceptonthefrequencyaxis.
B. Theworkfunctionisthesameforallsurfaces.
C. Allgraphshavethesameslope.
D. Thethresholdfrequencyisthesameforallsurfaces.
39. Apuresampleofmassmofaradioactivesubstancewithhalf-lifeT12
hasaninitialactivityA0.
Whatarethehalf-lifeandtheinitialactivityofapuresampleofmass2m ofthesameradioactivesubstance?
Half-life Initial activity
A. T12
A0
B. T12
2A0
C. 2 12
T A0
D. 2 12
T 2A0
40. Nucleardensity
A. isconstantbecausethevolumeofanucleusisproportionaltoitsnucleonnumber.
B. isconstantbecausethevolumeofanucleusisproportionaltoitsprotonnumber.
C. dependsonthenucleonnumberofthenucleus.
D. dependsontheprotonnumberofthenucleus.
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