文博志鸿·河南省2023-2024学年七年级第一学期学情分析二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文博志鸿·河南省2023-2024学年七年级第一学期学情分析二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

文博志鸿·河南省2023-2024学年七年级第一学期学情分析二物理试卷答案试卷答案

以下是该试卷的部分内容或者是答案亦或者啥也没有，更多试题答案请关注微信公众号：趣找答案/直接访问www.qzda.com(趣找答案)

C.Streamingcanhelprelieveboredom.D.Itisimportanttocommunicatewithviewers.第二节：（共5小题：每小题2.5分，满分12.5分)根据短文内容，从短文后的选项中选出能填入空白的最佳选项，选项中有两项为多余项

Whatisthebestsleeppositionforyourhealth?It'sdifficulttocontrolwhatsleepingpositionwenaturallyfellinto,asourbodywillsubconsciouslyfallintothemostcomfortablepositionforus.However,somepositionsarebetterforyouthanothersandsomecouldholdbackyourhealthandwellbeing.36IfyousleeponyoursideMorethan60percentofpeoplesleepontheirside.Oftenourbodynaturallymovestothisposition,whichislinkedtowhenwewereinthewombinthefoetalposition.37Itoffersanumberofbenefitstoyourbody,frompromotinghealthyspinealignment(whichcanhelptopreventbackpaintoreducingheartburnandsnoring(打鼾).IfyousleeponyourbackLyingonyourbackisthesecondmostpopularsleepingpositionandoffersjustasmanybenefitsassidesleeping.Whenyou'resleepingonyourback,it'seasytokeepalignmentandtoalsoevenlydistributeyourweight.38IfyousleeponyourstomachSleepingonyourstomachistheleastcommonsleepingposition.39Andthosewhosleepontheirstomachcouldputthemselvesatriskofalessrestfulnight'ssleep.Thestomachofferstheleastamountofbacksupportandcanincreasepressureonthespinewhichmaycausepainonceyouwakeup.40Youshouldconsidervariousfactorssuchasifyousnoreorsuffersleepproblems,orifyouoftenhavebackandneckpain.Sidesleepinghasbeennotedasthebestpositionforthebody,sothisisprobablyonetotryandgetintothehabitoftrying,butagain,italldependsonyou.A.Thisalsohelpstopreventanyneckandbackpain.B.Sleepingonyoursideisprobablythebestposition.C.Sidesleepingwouldbeparticularlybeneficialforolderpeople.D.Therearemorenegativestothispositioncomparedtopositives.E.DeterminingthesleepingpositionforyouispersonalpreferenceF.Here,thisarticlerevealsexactlyhowyoursleeppositionisaffectingyourhealth.G.Thisismostlylikelybecauseitisoneofthemostcomfortablesleepingpositions.第三部分：语言知识运用（共两节，满分30分)第一节：（共15题：每小题1分，满分15分）阅读下面短文，从短文后各题所给的A、B、C、和D中，选出可以填入空白处的最佳选项

MynameisAllyDelMonte.Irememberitclearly.WhenIwas10yearsold,my41andIwereonourfirstvacationatDisneyWorld,andweweregoingtoa"PirateandPrincessParty",Wedidn'tknowthatitwasacostume(partybutno42-mymomsaidshe'd43metogetaprincessdress.We44thelandofprincesses,buttheydidn'thaveoneforme.IwasinthebeginningstageofLymedisease.My45andmedicationcausedmyoverweight.Iwastoo46forthekidscostumesandthe47costumeswouldn'tworkforme.

文博志鸿·河南省2023-2024学年七年级第一学期学情分析二物理试卷答案第一部分

15.(18分)如图所示,光滑水平面上放置一轻质弹簧,弹簧的左端固定在挡板上,右端与小球甲(视为质点)接触不粘连,用一根轻质细线连接在挡板与小球之间,使弹簧处于压缩状态,且弹簧的压缩量为x0,,质量为的小球乙(视为质点)放置在甲的右侧。在水平面的下方固定放置一半径为r的圆管轨道,圆管的内径略大于乙的直径,D是轨道上圆心的等高点,EC是竖直直径,B、E是管口,管的内壁光滑。现突然烧断细线,弹簧恢复原长后甲与乙发生弹性碰撞,且碰撞刚结束时甲、乙的速度大小相等。乙从水平面的右边缘A点离开后,正好从管口B(与管口无碰撞)进入圆管,乙沿着管壁运动到E点,离开E点水平向左抛出后又能到达B点。已知BOC=60^,,弹簧的弹性势能Ep与弹簧的形变量x以及弹簧的劲度系数k之间的关系式为EP=12kx^2,重力加速度为;g,,求:(1)乙从E点到达B点时的速度大小;(2)A、B两点之间的高度差;(3)甲的质量以及弹簧的劲度系数。

文博志鸿·河南省2023-2024学年七年级第一学期学情分析二物理试卷答案第二部分（待更新）

4.2023年6月7日,力箭一号遥二运载火箭采取“一箭26星”方式,将搭载的试验卫星顺利送人预定轨道.如图所示,甲、乙两颗质量相等的人造卫星绕地球逆时针运动.甲的轨道Ⅲ为圆形,乙从圆轨道I到椭圆轨道Ⅱ要在S点点火加速,做离心运动,S、P两点为椭圆轨道长轴两端,Q点为轨道Ⅱ与Ⅲ的交点.已知轨道Ⅲ的半径与轨道Ⅱ的半长轴相等,不计卫星在变轨过程中的质量变化,则A.甲在轨道Ⅲ上运行周期大于乙在轨道Ⅱ上运行周期B.甲在Q点的动能小于乙在S点的动能C.从S到P和从P到S两过程地球对乙做的功相同D.相等时间内,甲与地心连线扫过的面积一定等于乙与地心连线扫过的面积