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天一大联考·安徽省2024-2025学年度上学期高二9月联考-(物理)试卷答案试卷答案

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必修一Unit5同步评估参考答案及部分解析参考答案1-5BCACA6-10CBBAC11-15BBACA16-20CABCA21-25BACBA26-30DCBAA31-35CABDC36-40ADCEB41-45ABCDB46-50BCBCD51-55DABCA56.in57.tobecome58.importance59.thatwho60.as61.opportunities62.wonderful63.learning64.their65.received写作第一节Onepossibleversion:DearElva,I'mwritingtothankyouforinvitingmetothelocalbotanicalgardenlastweekThiswasthefirsttimethatIhadvisitedabotanicalgardenabroad.IsawmanydifferentkindsofplantsthatIhadn'tseeninChina.WhatmadememostexcitedwastheButterflyHouse.Withcolourfulbutterfliesfromacrossthetropicalworld,itwasdefinitelyawonderlandthatmademefeelatpeaceandease.Whatawonderfulexperienceitwas!Thanksagain!InreturnI'dsincerelyliketoinviteyoutovisitChinaduringthesummerholiday.Yours,LiHua第二节Onepossibleversion:Finally,whenFather'sDaycame,bothAliandManocamehomefromschoolandstarteddecoratingthehouse.Mummadeachocolatecakeandotherdishes.Manodecoratedthefamilypicturebeautifully.Sowhenitwastimefortheirdadtoarriveintheevening,theywereallsetandreadyforthecelebration.Thedoorbellrang;itwastheirfatheratthedoor.Allsmiledtoeachotherandthen,Aliopenedthedoor.Theirfatherenteredthehouseandhewassurprisedtoseeallthebeautifully-decoratedwallswithlightsandballoons.AliandManocriedouttogether,"HappyFather'sDay!"Alitookhisguitarandstartedsingingthepoemthathe'dwrittenforhisfather.Itwasunexpectedfortheirfather.Hewassohappythathecouldnotsayaword.Hiseyesjustwelledupandhehuggedthem.WhilethiscelebrationtookplaceonFather'sDay,AliandManocontinuedtokeeptheirpromisetobeverygoodkidsandpayextraattentiontotheirparents'wishesandneeds-afterall,Father'sandMother'sDayshouldbecelebratedthroughouttheyear!部分解析阅读第一节A篇

天一大联考·安徽省2024-2025学年度上学期高二9月联考-(物理)试卷答案第一部分

天一大联考·安徽省2024-2025学年度上学期高二9月联考-(物理)试卷答案

(1)调整电阻箱的阻值,读取并记录电压表的示数及电阻箱接入电路中的阻值。多次重复上述操作,可得到多组电压值U及电阻值R。以为一直线,如图乙所示。为横轴,作出1U-1R的关系图线6=I(r+r2①由图线可求得电池组的电动势E=bV,内阻r=(以上两空结果均保留两位有效数字)②若考虑电表对电路的影响,则该电池电动势的测量值与真实值相比,内阻的测量值与真实值相比。(以上两空均选填“偏大”“偏小”或“相等”)

天一大联考·安徽省2024-2025学年度上学期高二9月联考-(物理)试卷答案第二部分(待更新)

16.(16分)如图所示,两个半圆状同心圆弧,分别交于坐标轴上的a、b、c点和d、e√点。大圆弧半径为R0,,辐向电场(电场方向由原点O向外)分布于两半圆弧之间,两半圆弧间的电势差为U0。半圆弧def上方区域有垂直纸面向里的足够长的匀强磁场,其上边界在y=2R0处,半圆弧abc内为无场区。O点处有一粒子源,可以在xOy平面内向x轴上方各个方向均匀射出带正电的粒子(粒子的质量为m,,电荷量为,初速度大小均为qU0m,粒子先后经过电场和磁场区域。不计粒子的重力以及粒子之间的相互作用,不考虑粒子从磁场返回圆弧区域边界后的运动。63^=2,,求:(1)粒子刚进入磁场区域的速度大小;(2)当垂直于磁场上边界射出磁场的粒子做圆周运动的半径最小时的磁感应强度大小B1;(3)若磁感应强度大小B2=32B1,粒子发射的不能从磁场上边界射出的粒子数与总粒子数的比值。临界性问题