河北省宣化区2023-2024学年度第二学期七年级期末考试物理试卷答案试卷答案,炎德英才答案网站目前收集并整理关于河北省宣化区2023-2024学年度第二学期七年级期末考试物理试卷答案试卷答案得系列试题及其答案，更多试题答案请关注我们

河北省宣化区2023-2024学年度第二学期七年级期末考试物理试卷答案试卷答案

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W:Howdoyouspendyoursparetime,Tom?M:IhaveaninterestinplayingtheviolinandI'llcontinuetopractiseplayingit.W:Doyouoftentakepartintheconcert?M:Yes,Iliketogolisteningtosomemusic.Atpresentmymajorpurposeistolearnfromothers.W:Doyoulikeclassicalmusicorpop?M:Ilikeboth.Howdoyouspendyoursparetimethen,Lily?W:Playingthepianoismyfavoriteactivity.M:Ourhobbiesaresimilar.Ilikeplayingtheviolinbest.Ihopewecanoftenexchangeexperiencetogether.W:SodoI,butI'mweakinthetheoryofmusic.M:Me,too.Wouldyouliketogowithmetomyuncle?He'saprofessorofmusic.W:I'mgladtogowithyou.Iwouldaskhimforhisadvice.Text8W:Hello,Jim.Whereareyougoing?M:Tothecinema.Whataboutcomingwithme?W:No,thanks.I'mgoinghome.Myfriend'sexpectingme.M:Whatapity!Ibelieveit'saverygoodfilm.W:Doyougotothecinemaalot?M:Onceaweek.MostnightsIsitathomeandwatchTV.W:Oh,Isee.Bytheway,whereareyougoingforyourholidaysthisyear?M:Idon'tknowyet.Mywife'sgoingtohermother'sforacoupleofweeks.Shelivesbythesea,youknow.W:Oh,doesshe?That'sconvenient.M:Yes,butIwanttogotothecountry.W:Don'tyoulikethesea?M:Yes,verymuch.ButIneedpeaceandquietwhenI'monholiday.Text9M:So,whatdoyouwanttodotomorrow?W:Whydon'twefirstvisittheartmuseuminthemorning?M:Okay.Ilikethatidea.Andwheredoyouwanttohavelunch?W:HowaboutgoingtoanIndianrestaurant?Theguiderecommendsonedowntownafewblocksfromthemuseum.M:Thatsoundsgreat.Afterthat,whatdoyouthinkaboutvisitingthezoo?Itsaysthattherearesomeuniqueanimalsnotfoundanywhereelse.TIANYICULTUREW:Totellthetruth,I'mnotreallyinterestedingoingthere.Whydon'twegoshoppinginstead?Therearesupposedtobesomereallyniceplacestopickupsomebargainclothes.M:Idon'tthinkthat'sagoodidea.Weonlyhaveafewtraveler'schecksleft,andourmotheronlygivesusfiftydollarsincash.W:Noproblem.Wecanuseyourcreditcardtopay.M:Oh,no.Irememberthelasttimeyouusedmycreditcardforyournewclothes.W:Oh,well.Let'stakethesubwaydowntotheseashoreandwalkalongthebeach.M:Thatsoundslikeawonderfulplan.Text10W:Maryworksatauniversityasastudentcounselor.Studentscancomeandseeheriftheyneedhelporadvice.—2

河北省宣化区2023-2024学年度第二学期七年级期末考试物理试卷答案第一部分

7.2023年5月30日9时31分,神舟十六号飞船在长征二号F遥十六运载火箭的托举核下,从酒泉卫星发射中心点火升空,经多次变轨于当日16时29分,成功对接天和核心舱的径向端口,随后十六号乘组景海鹏、朱杨柱和桂海潮进人空间站,与神舟十五号乘组“太空会师”。完成对接后的组合体在远地点为R、近地点为R的椭圆轨道R1、R2R1上运行,再次加速才能进入半径为R的圆形轨道以速率v绕地运行。已知地表重力加速度为g,引力常量为G,则下列说法正确的是A.神舟十六号变轨到接近空间站时,仅向后喷气就可实现径向对接B.组合体从近地点运动到远地点的时间为C.地球的平均密度为3v^24GR1^2D.半径为R1的圆形轨道上的重力加速度为v^2R2

河北省宣化区2023-2024学年度第二学期七年级期末考试物理试卷答案第二部分（待更新）

1.(10分)如图所示,透明玻璃体的下半部分是圆柱体,上半部分是半球体,圆柱体的底面半径和高均为R,半球体的半径也为R,O为半球体的球心,O1为圆柱体底面圆心。现有一束光从O1处射向玻璃体,入射光与OO1的夹角为θ,逐渐增大θ,使得光线从半球体A点射出,射出方向与OO1平行,A点距半球体底面的距离为R2,,继续增大θ,使得光线在B点(图中未画出)刚好不能从半球体射出。求:(1)透明玻璃体的折射率。(2)B点距圆柱体底面的距离。