包头铁道职业技术学院《College Physics I（全英文）》2025-2026学年第一学期期末试卷(B卷)

站名：站名：年级专业：姓名：学号：凡年级专业、姓名、学号错写、漏写或字迹不清者，成绩按零分记。…………密………………封………………线…………第1页，共1页包头铁道职业技术学院《CollegePhysicsI（全英文）》2025-2026学年第一学期期末试卷(B卷)注意事项:1.请考生在下列横线上填写姓名、学号和年级专业。2.请仔细阅读各种题目的回答要求，在规定的位置填写答案。3.不要在试卷上乱写乱画，不要在装订线内填写无关的内容。4.考试时间120分钟专业学号姓名题号一二三四五六七八总分统分人复查人得分得分评分人一、单项选择题（每题1分，共20分）1.Thespeedofacarismeasuredinmeterspersecond.Ifacartravels50metersin10seconds,whatisitsspeed?A.5m/sB.10m/sC.50m/sD.100m/s2.Aforceof10Nisappliedtoanobjectthathasamassof2kg.Whatistheaccelerationoftheobject?A.2m/s²B.5m/s²C.10m/s²D.20m/s²3.Whichofthefollowingstatementsistrueabouttheworkdonebyaconstantforce?A.Theworkdoneisproportionaltotheforceapplied.B.Theworkdoneisproportionaltothedistancetraveled.C.Theworkdoneisproportionaltotheforceappliedandthedistancetraveled.D.Theworkdoneisindependentoftheforceappliedandthedistancetraveled.4.Aballisthrownverticallyupwardswithaninitialvelocityof20m/s.Whatisitsvelocityafter2seconds?A.20m/sB.0m/sC.-20m/sD.40m/s5.TheaccelerationduetogravityonEarthisapproximately:A.9.8m/s²B.10m/s²C.9.81m/s²D.10.0m/s²6.Acarismovingataconstantspeedof60km/h.Howfarwillittravelin5minutes?A.10kmB.15kmC.20kmD.25km7.Whichofthefollowingisaunitofpower?A.NewtonB.KilogramC.MeterD.Watt8.Ablockofmass5kgispulledalongahorizontalsurfacewithaforceof10N.Thecoefficientofkineticfrictionbetweentheblockandthesurfaceis0.2.Whatistheaccelerationoftheblock?A.1m/s²B.2m/s²C.5m/s²D.10m/s²9.Apendulumhasaperiodof2seconds.Whatisitsfrequency?A.1HzB.2HzC.3HzD.4Hz10.A100kgobjectisliftedtoaheightof10meters.Howmuchworkisdoneagainstgravity?A.1000JB.2000JC.3000JD.4000J11.Acartravels100kmin2hours.Whatisitsaveragespeed?A.50km/hB.100km/hC.150km/hD.200km/h12.Aballisthrownhorizontallywithaninitialvelocityof30m/s.Howfarwillittravelin5seconds?A.150mB.300mC.450mD.600m13.Thespeedofacarisdoubled.Whatisthenewkineticenergycomparedtotheoriginalkineticenergy?A.2timesB.4timesC.8timesD.16times14.A50kgobjectispushedhorizontallywithaforceof10N.Thecoefficientofstaticfrictionbetweentheobjectandthesurfaceis0.5.Whatisthemaximumforcethatcanbeappliedbeforetheobjectstartsmoving?A.5NB.10NC.20ND.50N15.Aballisdroppedfromaheightof10meters.Whatisitsvelocityjustbeforeithitstheground?A.10m/sB.20m/sC.30m/sD.40m/s16.Acarismovingataconstantspeedof80km/h.Howmuchworkisdonebytheenginein5minutes?A.2000JB.4000JC.6000JD.8000J17.A10kgobjectispushedhorizontallywithaforceof20N.Thecoefficientofkineticfrictionbetweentheobjectandthesurfaceis0.3.Whatistheaccelerationoftheobject?A.1m/s²B.2m/s²C.3m/s²D.4m/s²18.Apendulumhasalengthof1meter.Whatisitsperiodifitisswingingwithanamplitudeof30degrees?A.1secondB.2secondsC.3secondsD.4seconds19.A100kgobjectisliftedverticallywithaforceof100N.Whatistheaccelerationoftheobject?A.1m/s²B.2m/s²C.3m/s²D.4m/s²20.Acarismovingataconstantspeedof50km/h.Howmuchworkisdonebytheenginein10minutes?A.1000JB.2000JC.3000JD.4000J二、多项选择题（每题2分，共20分）1.WhichofthefollowingstatementsaretrueaboutNewton'sfirstlawofmotion?A.Anobjectatrestwillremainatrestunlessacteduponbyanunbalancedforce.B.Anobjectinmotionwillcontinueinmotionwiththesamespeedandinthesamedirectionunlessacteduponbyanunbalancedforce.C.Anunbalancedforceisrequiredtochangethestateofmotionofanobject.D.Theaccelerationofanobjectisdirectlyproportionaltothenetforceactingonitandinverselyproportionaltoitsmass.2.Whichofthefollowingunitsareusedtomeasurework?A.NewtonB.KilogramC.MeterD.Joule3.Whichofthefollowingstatementsaretrueaboutthelawofconservationofenergy?A.Energycannotbecreatedordestroyed,butitcanbetransformedfromoneformtoanother.B.Thetotalenergyofaclosedsystemremainsconstant.C.Theworkdoneonanobjectisequaltothechangeinitskineticenergy.D.Thepotentialenergyofanobjectisequaltotheworkdonetoliftitagainstgravity.4.Whichofthefollowingstatementsaretrueaboutthelawofuniversalgravitation?A.Theforceofgravityisinverselyproportionaltothesquareofthedistancebetweentwoobjects.B.Theforceofgravityisdirectlyproportionaltothemassoftheobjects.C.Theforceofgravityisalwaysattractive.D.Theforceofgravityisanon-contactforce.5.Whichofthefollowingstatementsaretrueaboutthekineticenergyofanobject?A.Thekineticenergyofanobjectisdirectlyproportionaltoitsmassandthesquareofitsvelocity.B.Thekineticenergyofanobjectistheenergyassociatedwithitsmotion.C.Thekineticenergyofanobjectisconservedwhennoexternalforcesactonit.D.Thekineticenergyofanobjectiszerowhenitisatrest.三、判断题（每题1分，共10分）1.Thelawofconservationofmomentumstatesthatthetotalmomentumofaclosedsystemremainsconstant.2.Theaccelerationofanobjectisdirectlyproportionaltothenetforceactingonitandinverselyproportionaltoitsmass.3.Thepotentialenergyofanobjectisequaltotheworkdonetoliftitagainstgravity.4.Theforceofgravityisanon-contactforce.5.Theworkdonebyaconstantforceisproportionaltothedistancetraveled.6.Theperiodofapendulumisdirectlyproportionaltoitslength.7.Thespeedofacarismeasuredinmeterspersecond.8.Thekineticenergyofanobjectistheenergyassociatedwithitsmotion.9.Theworkdoneonanobjectisequaltothechangeinitskineticenergy.10.Theforceofgravityisinverselyproportionaltothesquareofthedistancebetweentwoobjects.四、名词解释（每题4分，共20分）1.Newton'ssecondlawofmotion2.Kineticenergy3.Potentialenergy4.Gravitationalpotentialenergy5.Accelerationduetogravity五、简答题（每题6分，共1