河北省万全区2023-2024学年度第二学期七年级期末学业水平测试(物理)试卷答案试卷答案,我们目前收集并整理关于河北省万全区2023-2024学年度第二学期七年级期末学业水平测试(物理)试卷答案得系列试题及其答案，更多试题答案请捕获只因吧
河北省万全区2023-2024学年度第二学期七年级期末学业水平测试(物理)试卷答案试卷答案
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betaken.Therestwilltakecareofitselfifyoukeepatit.Onestepatatime.That'sthesecret.Thenhewrotedownanoldmottoontheblackboard-thelongestjourneystartswithasinglestep.Havingheardhisstaircaseanalogy(),weunderstoodwhyheaskedusthequestionandwesawhiminanewlight.Mostofmyclassmatesscoreddistinctions(成绩优异)inmaths.AndIwentontobecomeanEnglishteacher.Tothisday,wheneverIpassonMrIyer'sinvaluableadvicetomyownstudents,theybrightenupattheprospectofalighteracademicburden24.Whatisthemainideaofthefirstparagraph?A.ThewayMrIyertaughthisstudentsmaths.B.Thereasonwhymathswashardfortheauthor.C.Thestudents'pointsofviewonMrIyer'scharacter.D.Thebriefintroductionoftheauthor'smathsteacher,Mrlyer.25.WhydidMrIyerstopsolvingamathematicalprobleminclass?A.Mrlyerwasalittletiredandwantedtohavearest.B.Somestudentsmadetroubleandaffectedtheclass.C.Themathematicalproblemwasratherpuzzling.D.Somestudentsseemedimpatientandupset.26.Whatisthesecretofreachingone'sgoalaccordingtoMrlyer?A.Thereisonlyonestepbetweensuccessandfailure.B.Takeactionquicklyandmakeprogresslittlebylittle.C.Itisimportanttomakeuseofagoodopportunity.D.Don'thesitatetoaskforhelpwhenmeetingwithbarriers.27.HowdoestheauthorlikeMrIyer'sadvice?::A.Strangeandimpractical.B.Incorrectandmisleading.C.Meaningfulandvaluable.D.SimpleanduninterestingODifferentweathermakespeoplefeeldifferent.Itinfluenceshealth,intelligenceandfeelings.InAugust,itisveryhotandwetinthesouthernpartoftheUnitedStates.Peopletherehavehearttroubleandotherkindsofhealthproblemsduringthismonth.IntheNortheastandtheMiddleWest,itisveryhotatsometimesandverycoldatothertimes.PeopleinthesestateshavemorehearttroubleaftertheweatherchangesinFebruaryorMarch.Theweathercanalsoinfluenceintelligence.Forexample,ina2018reportbyscientists,IQsofagroupofstudentswereveryhighwhenaverystrongwindcame,butafterthestrongwind,theirIQswere10%below.Thewindcanhelppeoplehavemoreintelligence.Veryhotweather,ontheotherhand,canmakeitlower.StudentsinmanyschoolsoftheUnitedStatesoftengetworseonexamsinthehotmonthsoftheyear(JulyandAugust).Weatheralsohasastronginfluenceonpeople'sfeelings.Wintermaybeabadtimeforthinpeople.Theyusuallyfeelcoldduringthesemonths.Theymightfeelunhappyduringcoldweather.Butfatpeoplemayhaveahardtimeinhotsummer.Atabout18C,peoplebecomestronger.Lowairpressuremaymakepeopleforgetful.Peopleleavemorebagsonbusesandinshopsonlow-pressuredays.Thereis"goodweather"forworkandhealth.Peoplefeelbestatatemperatureofabout18C.Areyoufeelingsad,tired,forgetful,orunhappytoday?Itmaybetheproblemofweather.28.WhendopeopleintheNortheastinAmericahavemorehearttrouble?A.InFebruary.B.InJuly.C.InAugust.D.InNovember.29.Whichisnotmentionedinthetextaboutwhatweatherhasaneffecton?A.People'shealth.B.People'sappearance.C.People'sintelligence.D.People'sfeelings.
主要实验步骤如下:d=cm。(1)测出金属丝的直径d和接人电路的长度L,某次金属直径的测量结果如图甲所示,(2)为尽可能减选定电源后请选择合适的仪器并完成虚线框内的电路设计。能减小实验误差,电源应选取填器材前的字母标号)。如图乙所示,
22.(6分)由中国中国自22.(6分)由中国自主研制的“鲲龙”AG600M灭火机以全新消防涂装成功完成12吨投水试验。若该飞机某段时间内消耗航空燃油1t,飞机发动机做的功为2×10J。(水的比热容4.210^3J/(kg^C),1t,为4.2×10°J/(kg·℃),航空燃油的热值为4x107J/kg)求:210^10J。410^7J/kg26^C(1)若12吨水温度从26℃升高到96℃需要吸收多少热量?96^C(2)消耗的航空燃油完全燃烧放出的热量是多少?(3)发动机的效率是多少?
9.如图,截面A2B2C2D2将空间中的长方体A1B1C1D1-A3B3C3D3区域分成两个正方体区域,在A1点固定有正点电荷+Q,A3,点固定有负点电荷-q,,带电量Qq,下列说法正确的是AA.A2点和D2,点的电场强度方向相同B.C2点的电场强度小于D2点的电场强度C.A2点和D2点的电势D.使另一负点电荷自D2,点沿直线运动至C2点,静电力一直做负功
