Alevel PH2 physics questions.docx

Alevel PH2 physics questions.docx

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AlevelPH2physicsquestions

Physics

PH2

CardiffHighSchool

Questions

PH2.1WAVES

Question1Jan’03PH1Q6

Question2June’03PH1Q3

Question3Jan’04PH1Q7

Question4June’04PH1Q5

Question5June’04PH1Q6

Question6June’04PH1Q7

Question7June’05PH1Q3

Question8June’05PH1Q7

Question9Jan’06PH1Q6

Question10June’06PH1Q4

Question11June’06PH1Q6

PH2.2REFRACTIONOFLIGHT

Question1Jan’05PH1Q6

Question2June’05PH1Q5

Question3Jan’06PH1Q5

Question4June’07PH1Q4

PH2.3PHOTONS

Question1June’03PH2Q4

Question2June’03PH2Q5

Question3June’03PH2Q6

Question4Jan’04PH2Q4

Question5Jan’04PH2Q6

Question6June’04PH2Q6

Question7June’04PH2Q7

Question8Jan’05PH2Q1

Question9Jan’05PH2Q5

Question10Jan’05PH26

PH2.4MATTER,FORCESANDTHEUNIVERSE

Question1EdexcelSpecimenPaper

Question2EdexcelJune‘01

Question3EdexcelJan‘02

Question4EdexcalJune‘02

Question5EdexcelJune‘03

Question6EdexcelJan‘04

PH2.5USINGRADIATIONTOINVESTIGATESTARS

Question1June’03PH1Q4

Question2EdexcelSpecimenPaper

Question3EdexcelJan‘02

Question4EdexcelJune‘02

Question5EdexcelJan‘03

Question6EdexcelJune‘03

Question7EdexcelJan‘04

PH2.1WAVES

Question1

Question2

Question3

Question4

Question5

Question6

Question7

Question8

Question9

Question10

Question11

PH2.2REFRACTIONOFLIGHT

Question1

Question2

Question3

Question4

PH2.3PHOTONS

Question1

Question2

Question3

Question4

Question5

Question6

Question7

Question8

Question9

Question10

PH2.4MATTER,FORCESANDTHEUNIVERSE

Question1

（a）Thestrongforceisoneofthefundamentalinteractions.Whatexchangeparticleisassociatedwiththisforce?

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Listtheotherfundamentalinteractions.Circletheoneforwhichthephotonistheexchangeparticle.

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（5）

（b）Completethetablebelowwhichcomparesalphaparticlescatteringwithdeepinelasticscattering.

（4）

（c）TheΩ–（omegaminus）,aparticlewithstrangeness–3,wasidentifiedin1964inanexperimentinvolvinganinteractionbetweenaK–mesonofstrangeness–1andaproton.

K–+p→Ω–+K++K0

IstheΩ–particleabaryonorameson?

Givetworeasonsforyouranswer.

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（2）

（e）Thetheoryofrelativityestablishedthatallformsofenergypossessmassand,conversely,thatmaterialparticlesareaformofenergy.Ifenoughenergyisconcentrated,newparticlesofmatterwillappear.Thus,theviolentcollisionoftwoprotons,forexample,canproducemoreprotons.Whenevermatteriscreatedthiswayinthelaboratoryitisalwaysaccompaniedbyanequivalentquantityofantimatter.Eachleptonandquarkpossessesanantiparticleinwhichallthephysicalpropertiesexceptmassarereversed.Ifanantiparticleencountersitsmirrorparticletheyannihilateeachother,usuallyintheformofgammaradiation.

[AdaptedfromPaulDavies:

Theparticlesandforcesofnature,inRevisedNASPhysics,Longman1986.]

（i）Thecollisionbetweentwoprotonsisdescribedasbeingaviolentcollision.Explainwhythecollisionmustbeaviolentoneinordertoproducemoreprotons.

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（2）

（ii）Whenevermatteriscreated“itisalwaysaccompaniedbyanequivalentquantityofantimatter”.

Whatconservationlawsdoesthisstatementimply?

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（3）

Question2

ThegridshowstherelationshipbetweennumberofneutronsNandnumberofprotonsZforsomeofthestablenuclidesintheregionZ=31toZ=45.

Strontium-90,

Sr,isanunstablenuclide.Itdecaysbyβ–emissiontoanunstableisotopeofyttrium.Onthegraphmarkthepositionof

Srandthisisotopeofyttrium.

（2）

Rbisanotherunstablenuclide.Markthepositionof

Rbonthegraph.

Bywhatmeanswouldyouexpect

Rbtodecay?

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（2）

Thefollowingstronginteractionhasbeenobserved.

K–+p→n+X

TheK–isastrangemesonofquarkcomposition

.

Theuquarkhasachargeof+2/3.

Thedquarkhasachargeof–1/3.

Deducethechargeofthestrangequark.

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（1）

UsetheappropriateconservationlawtodecidewhetherparticleXispositive,negativeorneutral.

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（2）

IsparticleXabaryonorameson?

Showhowyouobtainedyouranswer.

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（2）

StatethequarkcompositionofX.Justifyyouranswer.

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（3）

Question3

（a）Stateonesimilarityandtwodifferencesbetweenalphaandbetaparticles.

Similarity................................................................................................................

Difference1............................................................................................................

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Difference2............................................................................................................

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（3）

（b）Anatomofantihydrogen（apositronorbitingaroundanantiproton）hasbeenproduced.

Isanatomofantihydrogenpositive,negativeorneutral?

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（1）

Statethequarkcompositionofanantiproton.

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（1）

Showthatanantiprotonhasachargeof–1.

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