北京邮电大学世纪学院《College Physics I（全英文）》2025-2026学年第一学期期末试卷(A卷)

说明：本试卷将作为样卷直接制版胶印，请命题教师在试题之间留足答题空间。（第1页共6页）制卷人签名：制卷人签名：制卷日期：审核人签名：：审核日期：………………………………………………装……订……线…………………北京邮电大学世纪学院《CollegePhysicsI（全英文）》2025-2026学年第一学期期末试卷(A卷)适用年级专业考试方式闭卷考试时间120分钟学院专业班级学号姓名题号一二三四五六七八总分阅卷教师得分………………得分一、单项选择题（每题1分，共20分）1.AparticlemovesinacircularpathofradiusR.Thecentripetalforceactingontheparticleisgivenby:A.F=mv²/RB.F=mRv²C.F=mv²/R²D.F=m/Rv²2.Ablockofmassmisplacedonafrictionlessinclinedplanewithangleθ.Theaccelerationoftheblockdowntheplaneis:A.a=gsinθB.a=gcosθC.a=gtanθD.a=gcos²θ3.Thespeedoflightinavacuumisapproximately:A.3×10⁸m/sB.3×10⁹m/sC.3×10¹⁰m/sD.3×10¹²m/s4.Abodyisthrownverticallyupwardswithaninitialvelocityof20m/s.Thetimetakentoreachthemaximumheightis:A.2sB.4sC.6sD.8s5.Theworkdonebyaconstantforceinmovinganobjectadistanceof5mis:A.10JB.20JC.25JD.30J6.Thepotentialenergyofabodyofmassmataheighthabovethegroundis:A.PE=mghB.PE=gh²C.PE=2mghD.PE=gh7.Theforcerequiredtostretchaspringbyadistancexis:A.F=kxB.F=kx²C.F=k/xD.F=k/x²8.TheresistanceofawireoflengthLandcross-sectionalareaAis:A.R=ρL/AB.R=ρA/LC.R=ρL²/AD.R=ρA²/L9.Thefrequencyofawavewithwavelengthλandvelocityvis:A.f=λ/vB.f=v/λC.f=λ²/vD.f=v²/λ10.Theelectricfieldatapointinspaceduetoapointchargeqis:A.E=kq/r²B.E=kqr²C.E=kq²/rD.E=kqr11.ThemagneticfieldatapointontheaxisofalongstraightwirecarryingcurrentIis:A.B=μ₀I/2πrB.B=μ₀I/4πrC.B=μ₀I²/2πrD.B=μ₀I²/4πr12.Theenergyofaphotonwithfrequencyfis:A.E=hfB.E=h/fC.E=f²/hD.E=f/h²13.Thephotoelectriceffectoccurswhen:A.thefrequencyoftheincidentlightisgreaterthanthethresholdfrequencyB.thefrequencyoftheincidentlightislessthanthethresholdfrequencyC.theintensityoftheincidentlightisgreaterthanthethresholdintensityD.theintensityoftheincidentlightislessthanthethresholdintensity14.Thechargeofanelectronis:A.1.6×10⁻¹⁹CB.1.6×10⁻¹⁸CC.1.6×10⁻¹⁷CD.1.6×10⁻¹⁶C15.TheresistanceofaparallelcombinationoftworesistorsR₁andR₂is:A.R=R₁+R₂B.R=R₁R₂/(R₁+R₂)C.R=R₁R₂D.R=R₁/R₂16.TheresistanceofaseriescombinationoftworesistorsR₁andR₂is:A.R=R₁+R₂B.R=R₁R₂/(R₁+R₂)C.R=R₁R₂D.R=R₁/R₂17.Thespeedofsoundinairat20°Cisapproximately:A.330m/sB.340m/sC.350m/sD.360m/s18.Thewavelengthofasoundwavewithfrequencyfandspeedvis:A.λ=v/fB.λ=f/vC.λ=f²/vD.λ=v²/f19.Theelectricpotentialatapointinanelectricfieldis:A.V=E/dB.V=EdC.V=E²/dD.V=Ed²20.Themagneticfluxthroughasurfaceis:A.Φ=B·AB.Φ=BAcosθC.Φ=B/AD.Φ=B/Acosθ二、多项选择题（每题2分，共20分）1.Thefollowingstatementsaboutthekineticenergyofaparticlearecorrect:A.KineticenergyisascalarquantityB.KineticenergyisalwayspositiveC.KineticenergydependsonthemassandvelocityoftheparticleD.Kineticenergyisconservedinaclosedsystem2.Thefollowingstatementsaboutthework-energytheoremarecorrect:A.WorkdoneonanobjectisequaltothechangeinitskineticenergyB.WorkdoneonanobjectisequaltothechangeinitspotentialenergyC.WorkdoneonanobjectisequaltotheforceappliedtoitmultipliedbythedistanceoverwhichitisappliedD.Workdoneonanobjectisequaltothechangeinitstotalmechanicalenergy3.Thefollowingstatementsaboutthelawsofmotionarecorrect:A.Newton'sfirstlawstatesthatanobjectatrestwillremainatrestandanobjectinmotionwillcontinueinmotionwithconstantvelocityunlessacteduponbyanexternalforceB.Newton'ssecondlawstatesthattheaccelerationofanobjectisdirectlyproportionaltothenetforceactingonitandinverselyproportionaltoitsmassC.Newton'sthirdlawstatesthatforeveryaction,thereisanequalandoppositereactionD.ThelawsofmotionareapplicableonlytoobjectsonEarth4.Thefollowingstatementsabouttheprinciplesofthermodynamicsarecorrect:A.Thefirstlawofthermodynamicsstatesthatenergycannotbecreatedordestroyed,onlytransferredortransformedB.ThesecondlawofthermodynamicsstatesthatthetotalentropyofanisolatedsystemcanneverdecreaseovertimeC.ThethirdlawofthermodynamicsstatesthattheentropyofasystemapproacheszeroasthetemperatureapproachesabsolutezeroD.Thelawsofthermodynamicsareapplicableonlytosystemsatequilibrium5.Thefollowingstatementsaboutthepropertiesofwavesarecorrect:A.AwaveisadisturbancethattravelsthroughamediumB.ThespeedofawavedependsonthepropertiesofthemediumC.ThewavelengthofawaveisthedistancebetweentwoconsecutivecrestsortroughsD.Thefrequencyofawaveisthenumberofcrestsortroughsthatpassagivenpointinonesecond三、判断题（每题1分，共10分）1.TheaccelerationduetogravityisthesameatallpointsonthesurfaceoftheEarth.(T/F)2.Theworkdonebyaconservativeforceispathindependent.(T/F)3.Thepotentialenergyofabodyisalwayspositive.(T/F)4.Thespeedoflightinavacuumisconstant.(T/F)5.Thephotoelectriceffectcanbeexplainedbythewavetheoryoflight.(T/F)6.Thechargeofanelectronisequalinmagnitudebutoppositeinsigntothechargeofaproton.(T/F)7.Theresistanceofawireincreaseswithitslength.(T/F)8.Thefrequencyofawaveisthesameasthenumberofoscillationspersecond.(T/F)9.Theelectricfieldatapointinspaceisalwaysdirectedawayfromapositivecharge.(T/F)10.Themagneticfieldatapointontheaxisof