[吕梁二模]山西省吕梁市2024年九年级第二次模拟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[吕梁二模]山西省吕梁市2024年九年级第二次模拟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
[吕梁二模]山西省吕梁市2024年九年级第二次模拟考试物理试卷答案试卷答案
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第二节(共5小题;每小题2.5分,满分12.5分)根据短文内容,从短文后的选项巾选出能填入空白处的最佳选项
选项巾有两项为多余选项
I'maslowreader.16Thisisfineformebecausemytargetistofocusonquality.Inthepast,Iusedtospendthetimenecessarytogetthemostoutofthebookwithoutgettinglostindetails.ButnowIattachmoreimportancetoqualitythanquantity.Howcanwedothat?Howcanwechooseagoodbooktoread?Herearethreesimplestepsonhowtochooseagoodbooktoread.17Ibelievethathavingtherightattitudeisthestartingpoint.Whatistherightattitudetohave?Whenitcomestoself-education,therightattitudeiscuriosity.Becauseunlikeformaleducationwhereexternal()factorspushyoutolearn,withself-educationyouneedtomotivateyourself.Curiosityislikefuelinyourself-educationjourney.Findpotentialbooks.Tofindagoodbooktoread,youshouldcollectpotentialbookstoread.Inmycase,IusuallyputthemonmyAmazonwishlist.Howdoyoufindthesepotentialbooks?18Ialsofollowsomewebsitesthatoftenrecommendgoodbooks.Icanthendecidewhetherornotthebookisagoodoneforme.19Choosethebestbookforyourcurrentsituation.Withalistofpotentialbookstoread,howdoyouchoosewhichonetoread?20Whichbookwouldmakethemostdifferenceinmycurrentsituation?Thisquestionmightseemsimple,butifyouuseit,itcanmakeabigdifferenceinyourpersonalgrowth.A.Becurious.B.Becautious.C.Inmycase,Iaskmyselfaquestion.D.Well,myfirstsourceisbestsellerlists.E.Icanknowmoreabouttheauthorofabook.F.Ingeneral,Icanonlyfinishtwobooksinamonth.G.Ifitis,thenI'lladdittomylistofpotentialbookstoread.第二部分语言运用(共两节,满分45分)第一节(共15小题;每小题2分,满分30分)阅读下面短文,从短文后各题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项
IthappenedinKnoxville(acityinTennesseeintheUS).Amothersaidshewasfeeling21asshetriedtocomfortherautistic()son.Butastranger'sactofkindnessturnedbothoftheirdaysaround.AshleyFoxwas22atWalmartwithhersonNorris,three.Norrispickedoutatoydogatthestore.23,itcostmorethanFoxhad24,sosheputitback.“That'swhenNorrisjusthadameltdown(情绪突然失控).IrushedoutofWalmartasfastasIcould.Hewasscreamingand25,"saidFox.ShewasstrugglingtogetNorrisintohiscarseatwhenawomanapproachedherwiththe26hersonhadwantedinthestore."Theladycameupbehindmeandshepulledthistoyout,andshesaid,'Isthiswhathewaswanting?'andIsaid,'(hmygod,yesitis.'Igaveittohimandhejust27.Itwasgreat.Iexpressedmy28toherandofferedtopayforthistoy.She29toletmedoit,30sayingthatsheunderstoodthatbecauseshehas31,too.Ijustreallywantedhertoknowthatitmadehisnightandmadehis32HelovesitandIjustthinkitwasareally33thingthatshedid,"saidFox.23017A
[吕梁二模]山西省吕梁市2024年九年级第二次模拟考试物理试卷答案第一部分
(2)(10分)甲、乙两个储气罐储存有同种气体(可视为理想气体)。甲罐的容积为V,罐中气体的压强为p;乙罐的容积为2V,罐中气体的压强为12p。现通过连接两罐的细管把甲罐中的部分气体调配到乙罐中去,两罐中气体温度相同且在调配过程中保持不变,调配后两罐中气体的压强相等。求调配后(i)两罐中气体的压强;(ii)甲罐中气体的质量与甲罐中原有气体的质量之比。
[吕梁二模]山西省吕梁市2024年九年级第二次模拟考试物理试卷答案第二部分(待更新)
15.(18分)如图所示,半径为R的14光滑圆弧轨道固定在水平地面上,等厚木板A、B静止在水平地面上,木板A左端紧靠圆弧轨道底端,上表面与圆弧轨道末端相切。滑块从轨道顶端由静止释放,当滑块与木板A速度相等时,A、B恰好发生第一次碰撞。已知木板A、木板B和滑块的质量分别为m、2m、3m。。木板A与地面间的摩擦可忽略,滑块与木板A、B间的动摩擦因数均为板B与地面间的动摩擦因数为2,木板A的长度为L=R2,A、B间的碰撞均为弹性碰撞,且碰撞时间极短,滑块运动到木板B上后,撤去木板A,重力加速度为g,,忽略空气阻力。整个过程滑块没有落到地面上,求:(1)滑块运动到圆弧轨道底端时对圆弧轨道的作用力大小;(2)滑块运动到木板B上瞬间,滑块的速度大小;(3)木板B停止运动的位置与其初始位置间的距离。