陕西省西安市2023-2024学年第一学期第二次阶段测试（八年级）z物理考试试卷

陕西省西安市2023-2024学年第一学期第二次阶段测试（八年级）z物理试卷答案,免费查试卷答案网站目前收集并整理关于陕西省西安市2023-2024学年第一学期第二次阶段测试（八年级）z物理得系列试题及其答案，更多试题答案请关注我们

陕西省西安市2023-2024学年第一学期第二次阶段测试（八年级）z物理试卷答案

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Morethanoneyearlater,notonlyisGeorgestickingtohisdecision,buthe'sfoundawaytoturnhisdirtyfeetintoanincome-generatingmachine.Assoonashereturnedhome,the20-year-oldthrewawayallofhis20pairsofshoesandcommittedhimselftogoingbarefootfull-time.Hehasn'tlookedbacksinceandsaysthatthechangehasmadehimmorecomfortableinhisownskinandhelpedhimexpresshimselfbetter.Still,theyoungEnglishmanadmitsthatthecompletelackoffootweardoesn'timpress紧everyone.Somesupermarketmanagerswillaskhimtoleaveiftheyspothimintheirstores,andhe'sheardsomepeoplesaythatwhathe'sdoingisdisgusting,buthe'sneverfeltembarrassedaboutit."Inwinter,itwasabitdifficultatfirstbecauseitwasverycoldandIhadonlystartedwalkingbarefoot,andwhenitgotcoldandwetyoureallyfeltit.Butaswithanything,afterawhileyoujustbecomeusedtoit,”theyoungmanadded.￥Eversincehestarteddocumentinghisbarefootadventureonsocialmediaplatforms,GeorgeWoodvillestartedgettingrequestsfor"barefootpictures"fromhisonlinefans.That'swhenhedecidedtostartaplatform-OnlyFansforhisfeet.Heonlymade100inhisfirstmonthonOnlyFans,buthesaysit'sonlyamatteroftimebeforehemakesitbigontheplatform.24.WhatmakesGeorgeWoodvillewell-knownbothlocallyandonline?A.Hisstrongpersonality.B.Hisbarefootlifestyle.C.Hisuniquewalkinggesture.D.Hissuper-fastwalkingspeed.25.WhatcontributedtoGeorgeWoodville'sdecisioninparagraph2?A.Avacationwithhisfamily.B.Alectureonthebarefootmovement.C.Anunexpectedexperienceinahotel.D.Astrongdesiretoincreasehisincome.26.WhichofthefollowingwordscanbestdescribeGeorgeWoodville?A.Ambitiousbutimpatient.B.Changeableandcreative.C.Strong-willedbutinconsiderate.D.Determinedandadaptive.27.What'sGeorgeWoodville'sattitudetowardsOnlyFans?A.Uncaring.B.Mixed.C.Doubtful.D.Optimistic.CPeoplehavelongknownthatdogshaveagreatsenseofsmell.Butscientistsweren'tsurewhetherstressedpeoplehadaspecialsmell.Andiftheydid,theyweren'tsurewhetherdogscoulddetectthatsmell.Alldaylong,ourbodiesgothroughchangesandproducedifferentchemicals.Theycomeoutinourbreathandsweat,slightlychangingthewaywesmell.Butitwasn'tknownifstresscouldcausechangesthatcouldbedetected.SoresearchersatQueen'sUniversityBelfast,ledbyscientistClaraWilson,collectedbreathandsweatsamples()from36differentpeople.Theygotsampleswhenthepeoplewerecalmandwhentheywerestressed.Thecalmpartwaseasy.Theyaskedpeopletoreporttheirstresslevel,andmeasuredtheirheartratesandbloodpressure.Thepeoplewereaskedtowipetheirskinwithacleanpieceofcloth.Thentheyhadtoputtheclothsampleinatube(),breatheonithardthreetimes,andsealthetube.Thenthescientistsaskedareallydifficultmathproblem,andforeedpeopletodoitintheirheadsquickly.Theykepttellingthepeopletohurryup,anddidn'tgivethemanyhelp.Thatlastedforthreeminutes.Thentheresearcherscollectedtwomoresweatandbreathsamples.Theyalsoaskedthepeopleabouttheirlevelofstress,andmeasuredtheirheartratesandbloodpressure.Mostpeoplesaidtheyfeltverystressed.Onaverage,theheartrateincreasedfromabout91beatsperminutetoabout105beatsperminute.Thescientistsusedoneofthestressedsamples,alongwithtwocleanpiecesofcloth,totrainthedogstofindthestressedsmell.Thencamethechallenge:thedogshadthreechoices:asample卷英语试题第4页（共8页）您然

陕西省西安市2023-2024学年第一学期第二次阶段测试（八年级）z物理第一部分

3.真空轮胎,又称“低压胎”“充气胎”,真空胎没有内胎,直接在轮胎和轮圈之间封闭着一定质量的空气.若装有真空轮胎的汽车开了一段时间后停下,胎内气体开始降温,假设此过程胎内气体的体积不变,则此过程中A.每个气体分子速率均减小B.气体分子的数密度减小C.速率大的区间内分子数减少D.速率大的区间内分子数增多

陕西省西安市2023-2024学年第一学期第二次阶段测试（八年级）z物理第二部分（待更新）

(3)实验要验证动量守恒的表达式为(用F0、F1、F2、m1、m2表达);