[今日更新]安徽省2023-2024学年七年级下学期教学质量调研(5月).物理试卷答案

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[今日更新]安徽省2023-2024学年七年级下学期教学质量调研(5月).物理试卷答案试卷答案

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berelevanttotheatre.Sowhatever27I'llstillbedoingsomethingwiththeatre.Whilethiswon'tcompletely28thedisappointmentIfeelatnotbeingcast,itshouldreduceitsignificantly.APlanBduringtimesofpotential29)reallymattersalot.A.experienceB.informationC.interestD.promise第三部C11.A.aimB.lifestyleChabitD.fault第一节XA.ParticularlyB.FortunatelyC.BarelyD.Gradually假C13.A.challengingB.boringC.obviousD.limitless言错误A.pronounceB.fitC.writeDrchange增5,人atchB.comparisonC.patienceD.disagreement白6.AfailedB.declinedCneededD.intended.A./difficultB.normalC.illegalD.unique8.A.appreciateB.admireres通泡B.consult9.A.wayB.chanceC.dreamD.desire又oA.rememberingB.schedulingC.judgingD.attendingtheol☑21A.contributetoB.makeupforC.getridofD.dependon22.A.reportB.expectationcancellationD.progress23.A.anxietyB.disappointmentC.shameD.embarrassmentwassA.unaffordableB.unachievableuncomfortableD.uncontrollableA.showupB.slowdownC.watchoutD.giveinwave26.A.explanationBfernativeC.rewardD.hobby17.A.startsBhappensC.disappearsD.resistslearn28.A.meetB.(assessC.recordD.removeA.interruptionB.punishmentC.dangerD.competition选择题答题栏题号723678101112131415Mr.答案题号1617181920212223242526272829答案注意第二节（共10小题；每小题1.5分，满分15分）阅读下面短文，在空白处填人1个哨弹词或括号内单词的正确形式：TheDragonBoatFestivalisoneofthetraditionafestivalsiChina.ManyChinesepeoplehavecontinuedthecustomofthedragonboatraceforthefestival.Thosepeopledecoratetheboatstoresembleadragon.CraftsmenexercisetheirskillstowiththeircarvingPandpaintingtodecorateeachboat.theAccordingtolegend,theracebecamethecustomaftertherescueofthepatrioticpoetQuYuanintheWarringStatesPeriod(475BC~221BC).AsfarbackastheSuiDynasty,inalarge-scaledragonboatwiththeheightof15meters(49feet)andthe(220feet),tainedhanlsand120cabins.Itisrecordedthatthereweeineboatsinuseatthattime,eachthreestoreyshighIncompetitions,thedragonboatraceoftenappearsasagroupactivity.Nowadaystheboatishl4,nd20megG6g1longand1neer（&.3feetid起Ag巴4gemconsists约了手cn(划後角)8Oe,acoxswain(驼手)，agongbeaterddmrdrumbeats.ndelopmentofthespecialsport,variousmeetingsarearranged.ChiChina'sNationalGamesofMinorityNationality'sTraditionalSportsisoneexampleandit(hold)everyfouryears.ih况d

15.(18分)如图所示,固定斜面AB倾角=37^,,水平长木板M质量为5kg,左端与斜面B处平滑相靠。将质量m=1kg的物体无初速地放在斜面的顶端A,物体到达底端B后无碰撞地滑上木板左端。已知物体与斜面、木板间的动摩擦因数均为1=0.5,AB的距离为s=9m。。设最大静摩擦力等于滑动摩擦力,重力加速度g=10m/s^2(已知37^=0.6,37^=0.8)。。求:(1)物体从A运动到B点的时间。(2)若地面光滑,要使物体不会从木板上掉下,木板长度L至少应是多少。(3)若木板与地面间动摩擦因数为2,,且物体不会从木板上掉下,写出木板的最小长度Lm与2的关系式。(直接写出表达式不用写出计算过程)

10.如图所示,水平面上固定着两根足够长的平行光滑导槽,质量为m的光滑∪形管静止在导槽上,形管能在两导槽之间自由滑动,一质量为m的小球沿水平方向,以初速度v0从U形管的一端射入,已知小球的半径略小于管道半径,下列说法正确的是()A.该过程中,小球与∪形管组成的系统动量守恒B.小球运动到U形管圆弧部分的最左端时,小球的速度大小为3202C.当小球从U型管的另一端射出时,速度大小为02D.从小球入射至运动到U形管圆弧部分最左端过程中,导槽对∪形管的冲量大小为22mv0

4.某同学利用如图所示装置测量滑块与桌面间的动摩擦因数。滑块上装有宽度为d的遮光条,位置O处安装光电门,实验时给滑块向左的初速度,记录遮光条通过光电门的时间t、通过光电门后滑块继续滑行的距离为L,已知当地重力加速度大小为g,则滑块与桌面间的动摩擦因数为光遮光条滑块电A.d^22gLt^2B.2d^2gLt^2C.d2gLtD.2dgLL