M16/4/PHYSI/SPM/ENG/TZ0/XX
© International Baccalaureate Organization 201617 pages
PhysicsStandard levelPaper 1
45 minutes
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 [30 marks].
2216 – 6504
M 16 /4/PHYSI/SPM/ENG/TZ0/XX– 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
2. Aswimmingpoolcontains18× 106kgofpurewater.Themolarmassofwateris18gmol–1.Whatisthecorrectestimateofthenumberofwatermoleculesintheswimmingpool?
A. 104
B. 1024
C. 1025
D. 1033
M16/4/PHYSI/SPM/ENG/TZ0/XX– 3 –
Turn over
3. Anaircraftismovinghorizontally.Aparachutistleavestheaircraftandafewsecondslateropensherparachute.Whichgraphshowsthevariationoftheverticalspeedvwithtimetfortheparachutistfromthetimesheleavestheaircraftuntiljustbeforelanding?
A.v
t00
B.v
t00
C.v
t00
D.v
t00
4. Anobjectofmassmrestsonahorizontalplane.Theangleθ thattheplanemakeswiththehorizontalisslowlyincreasedfromzero.Whenθ = θ0,theobjectbeginstoslide.WhatarethecoefficientofstaticfrictionμsandthenormalreactionforceNoftheplaneatθ = θ0?
μs N
A. sinθ0 mgcosθ0
B. tanθ0 mgsinθ0
C. sinθ0 mgsinθ0
D. tanθ0 mgcosθ0
M16/4/PHYSI/SPM/ENG/TZ0/XX– 4 –
5. Astoneisfallingataconstantvelocityverticallydownatubefilledwithoil.Whichofthefollowingstatementsabouttheenergychangesofthestoneduringitsmotionarecorrect?
I. Thegaininkineticenergyislessthanthelossingravitationalpotentialenergy.
II. Thesumofkineticandgravitationalpotentialenergyofthestoneisconstant.
III. Theworkdonebytheforceofgravityhasthesamemagnitudeastheworkdonebyfriction.
A. IandIIonly
B. IandIIIonly
C. IIandIIIonly
D. I,IIandIII
6. Aspringofnegligiblemassandlengthl0hangsfromafixedpoint.Whenamassmisattachedtothefreeendofthespring,thelengthofthespringincreasestol.Thetensioninthespringisequaltok ∆x, where kisaconstantand∆xistheextensionofthespring.Whatisk?
A.mgl0
B. mgl
C.mg
l l− 0
D.mg
l l0 −
M16/4/PHYSI/SPM/ENG/TZ0/XX– 5 –
Turn over
7. 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
8. Atrainonastraighthorizontaltrackmovesfromrestatconstantacceleration.Thehorizontalforcesonthetrainaretheengineforceandaresistiveforcewhichincreaseswithspeed. WhichgraphrepresentsthevariationwithtimetofthepowerPdevelopedbytheengine?
A.P
t00
B.P
t00
C.P
t00
D.P
t00
M16/4/PHYSI/SPM/ENG/TZ0/XX– 6 –
9. Thegraphshowshowtheaccelerationaofanobjectvarieswithdistancetravelledx.
a/ms–2
30
25
20
15
10
5
0 0 5 10 15 20 25 30 x/m
Themassoftheobjectis3.0kg.Whatisthetotalworkdoneontheobject?
A. 300J
B. 400J
C. 1200J
D. 1500J
M16/4/PHYSI/SPM/ENG/TZ0/XX– 7 –
Turn over
10. Asubstanceisheatedatconstantpower.ThegraphshowshowthetemperatureTofthesubstancevarieswithtimetasthestateofthesubstancechangesfromliquidtogas.
T
t
Whatcanbedeterminedfromthegraph?
A. Thespecificheatcapacityofthegasissmallerthanthespecificheatcapacityoftheliquid.
B. Thespecificheatcapacityofthegasislargerthanthespecificheatcapacityoftheliquid.
C. Thespecificlatentheatoffusionofthesubstanceislessthanitsspecificlatentheat ofvaporization.
D. Thespecificlatentheatoffusionofthesubstanceislargerthanitsspecificlatentheat ofvaporization.
11. Whichofthefollowingisnotanassumptionofthekineticmodelofidealgases?
A. Allparticlesinthegashavethesamemass.
B. Allparticlesinthegashavethesamespeed.
C. Thedurationofcollisionsbetweenparticlesisveryshort.
D. Collisionswiththewallsofthecontainerareelastic.
M16/4/PHYSI/SPM/ENG/TZ0/XX–8–
12. Underwhatconditionsofdensityandpressureisarealgasbestdescribedbytheequationofstateforanidealgas?
A. Lowdensityandlowpressure
B. Lowdensityandhighpressure
C. Highdensityandlowpressure
D. Highdensityandhighpressure
13. ApointsourceemitssoundwavesofamplitudeA.Thesoundintensityatadistancedfromthesourceis I.Whatisthesoundintensityatadistance0.5dfromthesourcewhenthesourceemitswavesofamplitude2A?
A. 16I
B. 4I
C. I
D.14
I
M16/4/PHYSI/SPM/ENG/TZ0/XX– 9 –
Turn over
14. Awaterwavemovesonthesurfaceofalake.PandQaretwopointsonthewatersurface. Thewaveistravellingtowardstheright.
direction of wave
PQ
Thediagramshowsthewaveattimet = 0.WhichgraphshowshowthedisplacementsofPandQvarywitht?
A.1.0
0.5
0
–0.5
–1.0
0 2 4 6 8 10 12 t / s
P QB.
1.0
0.5
0
–0.5
–1.0
P Q
0 2 4 6 8 10 12 t / s
C.1.0
0.5
0
–0.5
–1.0
P Q
0 2 4 6 8 10 12 t / s
D.1.0
0.5
0
–0.5
–1.0
P Q
0 2 4 6 8 10 12 t / s
M 16 /4/PHYSI/SPM/ENG/TZ0/XX– 10 –
15. 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 / °
M16/4/PHYSI/SPM/ENG/TZ0/XX– 11 –
Turn over
16. ApipeoflengthLhastwoopenends.AnotherpipeoflengthL′hasoneopenendandoneclosedend.
Thefrequencyofthefirstharmonicofbothpipesisthesame.Whatis′L
L?
A. 2
B. 32
C. 1
D. 12
17. Alightraypassesfromairtowaterasshown.
airwater
lightray
Whatarethechangeinthewavelengthofthelightwaveandthechangeintheangletheraymakeswiththenormaltothesurface?
Wavelength Angle with normal
A. increases increases
B. increases decreases
C. decreases increases
D. decreases decreases
M16/4/PHYSI/SPM/ENG/TZ0/XX– 12 –
18. Threefixedcharges,+Q,–Qand–2Q,areattheverticesofanequilateraltriangle.Whatistheresultantforceonanelectronatthecentreofthetriangle?
+Q –2Q
–Q
A.
B.
D.
C.
electron
19. ThegraphshowsthevariationofcurrentIinadevicewithpotentialdifferenceVacrossit.
V / V00
I / A
P2
2010
4
WhatistheresistanceofthedeviceatP?
A. zero
B. 0.1Ω
C. 10Ω
D. infinite
M16/4/PHYSI/SPM/ENG/TZ0/XX– 13 –
Turn over
20. Acircuitconsistsofacellofelectromotiveforce(emf)6.0Vandnegligibleinternalresistanceconnectedtotworesistorsof4.0Ω.
A
6.0 V
4.0 Ω4.0 Ω
Theresistanceoftheammeteris1.0Ω.Whatisthereadingoftheammeter?
A. 2.0A
B. 3.0A
C. 4.5A
D. 6.0A
M16/4/PHYSI/SPM/ENG/TZ0/XX– 14 –
21. AwirecarryingacurrentIisplacedinaregionofuniformmagneticfieldB,asshowninthediagram.
B
I
L
ThedirectionofthefieldBisoutofthepageandthelengthofthewireisL.Whatiscorrectaboutthedirectionandmagnitudeoftheforceactingonthewire?
Direction Magnitude
A. equaltoBIL
B. smallerthanBIL
C. equaltoBIL
D. smallerthanBIL
M16/4/PHYSI/SPM/ENG/TZ0/XX– 15 –
Turn over
22. Amassconnectedtooneendofarigidrodrotatesatconstantspeedinaverticalplaneabouttheotherendoftherod.
rod
mass
Theforceexertedbytherodonthemassis
A. zeroeverywhere.
B. constantinmagnitude.
C. alwaysdirectedtowardsthecentre.
D. aminimumatthetopofthecircularpath.
23. PlanetXhasmassMandradiusR.PlanetYhasmass2Mandradius3R.ThegravitationalfieldstrengthatthesurfaceofplanetXisg.WhatisthegravitationalfieldstrengthatthesurfaceofplanetY?
A.29
g
B.23
g
C.32
g
D.92
g
M16/4/PHYSI/SPM/ENG/TZ0/XX– 16 –
24. Asimplemodelofanatomhasfiveenergylevels.Whatisthemaximumnumberofdifferentfrequenciesintheemissionspectrumofthatatom?
A. 4
B. 6
C. 10
D. 25
25. Whichofthefollowingisthecorrectdefinitionofthebindingenergyofanucleus?
A. Theproductofthebindingenergypernucleonandthenucleonnumber
B. Theminimumworkrequiredtocompletelyseparatethenucleonsfromeachother
C. Theenergythatkeepsthenucleustogether
D. Theenergyreleasedduringtheemissionofanalphaparticle
26. Whichofthefollowingliststhreefundamentalforcesinincreasingorderofstrength?
A. electromagnetic,gravity,strongnuclear
B. weaknuclear,gravity,strongnuclear
C. gravity,weaknuclear,electromagnetic
D. electromagnetic,strongnuclear,gravity
27. Forwhichreasonwerequarksfirstintroduced?
A. Toexplaintheexistenceofisotopes
B. Todescribenuclearemissionandabsorptionspectra
C. Toaccountforpatternsinpropertiesofelementaryparticles
D. Toaccountforthemissingenergyandmomentuminbetadecay
M16/4/PHYSI/SPM/ENG/TZ0/XX– 17 –
28. Asolarpanelhassurfacearea0.40m2andefficiency50%.Theaverageintensityofradiationreachingthesurfaceofthepanelis0.25kWm–2.Whatistheaveragepoweroutputfromanarrayof10ofthesesolarpanels?
A. 0.5W
B. 5W
C. 50W
D. 500W
29. Whatisthecorrectorderofenergytransformationsinacoalpowerstation?
A. thermal → chemical → kinetic → electrical
B. chemical → thermal → kinetic → electrical
C. chemical → kinetic → thermal → electrical
D. kinetic → chemical → electrical → thermal
30. Ablackbodyofsurface1.0m2emitselectromagneticradiationofpeakwavelength2.90× 10–6m.Whichofthefollowingstatementsaboutthebodyarecorrect?
I. Thetemperatureofthebodyis1000K.
II. Theenergyradiatedbythebodyinonesecondis5.7× 104J.
III. Thebodyisaperfectabsorberofelectromagneticradiation.
A. IandIIonly
B. IandIIIonly
C. IIandIIIonly
D. I,IIandIII