大学物理双语试卷A

广东工业大学试卷用纸，共页，第页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4)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9)relativisticeffect相对论效应10)electron电子2.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.ConsiderthechangePintheball’slinearmomentum,yp__________,thedirectionofPis_________.yx广东工业大学试卷用纸，共页，第页4)Thepositionofaparticularparticleasafunctionoftimeisgivenbymktjitr)ˆˆ8ˆ7(2.Theparticle’saccelerationasafunctionoftimeis__________________.5)Amanstandsonafreelyrotatingplatform.Withhisarmsextended,hisrotationfrequencyis0.25rev/s.Butwhenhedrawsin,hisfrequencyis0.80rev/s.Theratioofhismomentofinertiainthefirstcasetothatinthesecond(fiII)is____________.6)TheequationofaloudspeakervibratesinSHMis)1650cos()105.1(4tmx,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.o1o2广东工业大学试卷用纸，共页，第页2）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.)]81(π4cos[tAyAuPP1xBAx