大学物理双语试卷a

大学物理双语试卷a

广东工业大学考试试卷(A)课程名称:大学物理一（双语）考试时间:第21周星期三(7月12日)题号一二三四五六七八九十总分得分评分人1.MultipleChoices(选择题，每个题目3分，共30分。只有一个正确答案。)1）centripetal向心的2)rim轮子3)stretch拉长，拉紧学院：专业：学号：姓名：装订线广东工业大学试卷用纸，共页，第页\n4)transversewave横波，respectively分别的5)inphase同相；constructiveinterference相干相长6)increase增加7)incident入射；destructiveinterference相干相消8)diffractiongrating衍射光栅广东工业大学试卷用纸，共页，第页\n9)relativisticeffect相对论效应10)electron电子1.CompleteBlanks.(填空题，每个题目3分，共30分。)1).Anelectrontravelswithavelocityof0.99calongadrifttubethatis10mlong.Thetransittimeasmeasuredbyanobserverwhoisstationarywithrespecttothedrifttubet’is_________,andbyanobserverwhomoveswiththeelectront0is___________.2）TheBrewsterangleforproducingaplanepolarizedbeamoflightbyreflectioninairfromacrownglasssurfaceis56.7。,therefractionangleis________.3）Thefigureshowsanoverheadview(俯视)ofaballwithmassmboundcingfromaverticalwallwithoutanychangeinitsspeedv.Considerthechangeintheball’slinearmomentum,__________,thedirectionofis_________.广东工业大学试卷用纸，共页，第页\nyx4)Thepositionofaparticularparticleasafunctionoftimeisgivenby.Theparticle’saccelerationasafunctionoftimeis__________________.5)w1w2Amanstandsonafreelyrotatingplatform.Withhisarmsextended,hisrotationfrequencyis0.25rev/s.Butwhenhedrawsin,hisfrequencyis0.80rev/s.Theratioofhismomentofinertiainthefirstcasetothatinthesecond()is____________.6)TheequationofaloudspeakervibratesinSHMis,themaximumvelocityis___________,andthemaximumaccelerationis_______.7)If344brightfringesarecountedwhenthemovablemirrormoves0.125mm,thewavelengthofthelightenteringaMichelsoninterferometer(干涉仪)is________nm.3.SolvingProblems.(计算题，每题10分，共40分)1).AnAtwood’smachine（阿基伍德机）consistsoftwomasses,m1andm2,whichareconnectedbyamasslessinelastic（非弹性的）cordthatpassesoverapulley.IfthepulleyhasradiusRandmomentofinertiaIaboutitaxle.a)Drawfree-bodydiagramsforeachofthetwoblocksandthepulley.b)Determinetheaccelerationofthemassesm1andm2,c)Comparetothesituationinwhichthemomentofinertiaofthepulleyisignored.广东工业大学试卷用纸，共页，第页\n广东工业大学试卷用纸，共页，第页\n2）Unpolarizedlightfallsontwopolarizersheetswhoseaxesareatrightangles.(a)Whatfractionoftheincidentlightintensityistransmitted?(WhatisI1andI2?)(b)Whatfractionistransmittedifathirdpolarizerisplacedbetweenthefirsttwosothatitsaxismakesa60。angletheaxisofthefirstpolarizer?(c)Whatifthethirdpolarizerisinfrontoftheothertwo?3)TheforcerequiredtocompressanimperfecthorizontalspringanamountxisgivenbyF=150x+12x3,wherexisinmetersandFinNewtons.Ifthespringiscompress2.0m,a)whatwastheworkrequiredtocompressthespring?b)whatspeedwillitgivetoa3.0-kgballheldagainstitandthenreleased?4)TheoscillationequationofpointAisFindthewaveequations,(a)placeAasorigin.(b)placeBasorigin.PP.BA...广东工业大学试卷用纸，共页，第页