江西省2025届八年级第二次阶段适应性评估【R-PGZX A-JX】z物理考试试卷

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江西省2025届八年级第二次阶段适应性评估【R-PGZX A-JX】z物理试卷答案

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BeijingPlayhouse,Beijing'sonlyEnglish-langungetheater,isrunningfourdramacampsthissummer:Pinocchio,OnceUponaTime,BeautyandtheBeast,andRomeoandJuliet.BeijingPlayhouseAllcampslasttwotothreeweeks,arelimitedto30kids,andendwithaperformance.Dates:June29~July11(Pinocchio),July13~25(OnceUponaTime),July27-August8Ages:6~14Prices:RMB8,000forPinocchio,OnceUponaTime,andBeautyandtheBeast:RMB12,000(BeautyandtheBeast),August10-29(RomeoandJuliet)forRomeoandJulietThat'sMandarinisrunningfourcampsforChineselanguageandculture:morningcamp,That'sMandarindaycamp,fullcampandhomestaycamp.Dates:FromJunetoAugust.StartdatesareJune15,June29,July13,July27,andAugust10Ages:7~17Morningcamp:RMB5,000(twoweeks),RMB9,200(fourweeks)Prices:Daycamp:RMB9,000(twoweeks),RMB17.200(fourweeks)Fullcamp:RMB20,000(twoweeks),RMB38,000(fourweeks)Homestaycamp:RMB24,000(twoweeks),RMB46,000(fourweeks)21.Whichcampissuitableforthe5-year-olds?A.IvyAcademy.B.BeijingPlayhouse.C.That'sMandarin.D.PrestigeEducationCentre.22.WhatdoesBeijingPlayhousefocuson?A.Englishdrama.B.Literatureandscience.C.Musicandart.D.Chineselanguageandculture.23.HowmuchshouldastudentpayforThat'sMandarin'sfour-weekdaycamp?B.RMB9,200.C.RMB17,200.D.RMB46,000.A.RMB9,000.BBillRussell,oneofbasketball'slegendaryplayers,hasdiedatage88.TheannouncementwaspostedonhisTwitteraccountonAugust1,2022.Russellmademanyhistoriesinthegame.HebecamethefirstBlackheadcoachintheNBAandhetookanactivepartinthecivilrightsmovementofthe1960s.HesatinthefrontrowatMartinLutherKingJr.'shistoric"IHaveaDream"speechinWashington,DC.He-alongwithBlackteammates-boycottedagameinKentuckywhenarestaurantdeniedthemservice.Hejoinedotherwell-knownBlackathletesinsupportingboxerMuhammadAli,whorefusedtogototheVietnamWar.Buthegotareputationforbeingsurlytohisfans.Herefusedtosignautographs()."Hehaddoubtsaboutpeople'sintentions,"StephenBeslicwroteinhisbookBasketballNetworkin2020,"andhedidn'twantsomeoneusinghimforhispopularity.That'swhyheofferedasimplesolution:Hewon'tsignanything."Tounderstandthismanandsuperathlete,ithelpstorememberoneofhismother'slessons.Onedaywhenthe9-year-oldBillRussellwasoutsidehisapartment,fivewhiteboysranbyandonehithimintheface.Heandhismotherwentlookingforthegroup.Whentheyfoundthem,heexpectedhismothertobeatthem.Instead,hismothersaid,"Fightthem,oneatatime."Hewontwo,lostthree.Ina2013interview,Russellsaidhismother'smessagechangedhislife.【2023年仿真模拟卷（六）·英语第3页（共8页）】新高考批准文号：皖费核(2021年秋季)第0602号举报电话：12315最色即明产品

江西省2025届八年级第二次阶段适应性评估【R-PGZX A-JX】z物理第一部分

14.(13分)如图所示,质量为m的小圆环A套在足够长的光滑水平杆上,质量为3m的小球B通过长度为L的轻绳与A连接,初始时轻绳处于水平伸直状态,A、B均静止,光滑水平地面上静止有小球1和2,小球1的质量为3m,小球2的质量为m,小球1位于A环正下方L处,某时刻释放小球B,B到达最低点时轻绳恰好断裂,之后B在水平地面上向左运动,所有小球之间的碰撞均为弹性正碰,已知重力加速度为g,不计空气阻力,所有小球均可视为质点,求:(1)轻绳断裂时A、B各自的速度大小;(2)轻绳所能承受的最大拉力;(3)小球1与小球2第一次碰过程中,小球1对小球2的冲量大小。

江西省2025届八年级第二次阶段适应性评估【R-PGZX A-JX】z物理第二部分（待更新）

2.如图所示,质量为m的手机静置在斜面支架上,斜面与水平面的夹角为θ,,手机与接触面的动摩擦因数为,重力加速度为g。下列说法正确的是A.手持支架向上匀加速直线运动且手机与支架间无相对滑动,手机受到的支持力与静止时受到的支持力相等B.支架斜面对手机的摩擦力大小为gcosθ,方向沿斜面向上C.支架对手机的作用力方向垂直于斜面向上,大小为mgcosD.手持支架向右做匀加速直线运动且手机与支架间无相对滑动,手机可能不受摩擦力