[今日更新]河北省邱县2023-2024学年度九年级期末考试.物理试卷答案

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[今日更新]河北省邱县2023-2024学年度九年级期末考试.物理试卷答案试卷答案

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怎全国0©0所名校高考模拟金典卷Yours,LiHua【答案】Onepossibleversion:DearJohn,IamgladtohearthatyouwillcometoChinaforfurthereducation.AsforhowtogetreadytostudyChineseandChineseculture,you'dbettermakeadequatepreparationsinad-vance,Forexample,youcanattendsomeChinesetrainingcoursestohaveabasiclanguagefoundationbeforecomingtoChina,whichcanhelpyouovercomethelanguagebarrierwhenstudyingandlivinghere.Besides,youcansearchforsomeinformation,includingthelocalcultureaboutyourdestination,sothatyoucanadapttothelifeeasi-江西教育出版社ly.eBytheway,thankyouforyourhelpwithmyEnglish.Ifpossible,I'mlookingforwardtostudyingwithyouatthesameuniversity.Yours,LiHua第二节（满分25分）阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文

Lastyear,thatdaywasmybirthday.Everyyear,myparentspreparedabirthdaygiftforme.SothatdayIwasexpectingabirthdaygift,too.AfterIcamebackfromschool,IsawmymotherwatchingTVinthesittingroom.了"Mom,whereismybirthdaygift?"Iasked.Hearingthat,mymotherlookedupatme.SheThenshesaid,"Sorry,Itotallyforgotit'syourbirthdaytoday.Ihaven'tgotabirthdaygiftlookedsurprised.foryou."Iwasverysadtohearthat.Iwenttomyroomandshutthedoor.Abouthalfanhourlater,mymothercameandknockedonthedoor.Shetoldmesupperwas"Comeouttoeatquickly,"shesaidasifnothinghadhappened.AfterIwentout,Isawmyready.motherandfathersittingatthetable.Icametothetable,unhappy."Sohowiseverythinggoinginschool?"whileeating,myfatherasked.“Nothingspecial,”Isaidinalowvoice,Aftersupper,myfathersaid,"Let'sgooutandenjoyaride."Iwasn'tinagoodmood,soIsaid,"Idon'tfeellikegoinganywhere."Myfathersmiledandsaid,"Followme.Youwon'tgetdisappointed."Lookingatthesmileonmyfather'sface,Isuddenlycheeredup.IwassuremyparentshadThenwewentoutofthehouseandgotinmyfather'scar.Ithoughttheyweretakingmetopreparedasurpriseforme.SoIfollowed.9°【23新高考·D·英语-QG1

2.在冰雪覆盖的路面上,车辆紧急刹车时,车轮会抱死而“打滑”。如图所示,设某汽车以36km/h的速度行驶至一斜坡的顶端A时,突然发现坡底前方有一行人正以2m/s的速度同向匀速行驶,司机立即刹车,但因冰雪路面太滑,汽车仍沿斜坡滑下。已知斜坡倾角θ=37^(37^=0.6,37^=0.8),斜坡长sAC=11m,,司机刹车时行人距坡底C点距离sCE=7m,从厂家的技术手册中查得该车轮胎与冰雪路面的动摩擦因数约为0.5,,假设斜坡与水平路面平滑连接,司机从C点进入水平路面时速率不变,重力加速度g取10m/s^2。下列说法正确的是BCCEEDA.汽车在斜坡上滑下时的加速度大小为6m/s^2B.汽车到达坡底C时的速度大小为14rm/sC.汽车到达坡底C时经历的时间为1s√D.上述情况下行人没有危险,无需避让

11.(7分)某实验小组用如图甲所示的实验装置测量木块运动的加速度,一端垫起的木板上有一木块,木块与穿过电磁打点计时器的纸带相连,电磁打点计时器接频率为50Hz的交流电源,接通电源后,由静止释放木块,木块带动纸带打出如图乙所示的一条纸带,A、B、C、D、E是选取的计数点,每相邻两计数点间还有四个点未画出。甲根据图乙中的数据可知,电磁打点计时器打C点时木块的速度大小vc=m/s,木块加速度大小a=m/s^2。(结果均保留两位有效数字)

(3)改变摆线的长,重复实验,测得多组摆长L及对应的周期7,在坐标纸中描点作出T^2-L图线如9.76图丙所示,由图像可计算出当地的重力加速度;g=9.8m/s^2(取π=3.14,计算结果保留3位有效数字).若该同学将摆线长和小球直径之和当作单摆的摆长,记为L.改变摆长L,重复实验,记录各次实验的数据L和T,利用所测得的数据作出T^2与1的关系图像,根据该图像的斜率计算得到重力加速度g的值大于(选填“大于”“等于”或“小于”)当地重力加速度值.