[今日更新]湖北省恩施州高中教育联盟2023年秋季学期高二年级期末考试(24-289B).物理试卷答案

[今日更新]湖北省恩施州高中教育联盟2023年秋季学期高二年级期末考试(24-289B).物理试卷答案试卷答案,我们目前收集并整理关于[今日更新]湖北省恩施州高中教育联盟2023年秋季学期高二年级期末考试(24-289B).物理试卷答案得系列试题及其答案，更多试题答案请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)

[今日更新]湖北省恩施州高中教育联盟2023年秋季学期高二年级期末考试(24-289B).物理试卷答案试卷答案

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31.Whatisthebesttitleofthetext?A.AIReshapeEducationB.UsingAIintheClassroom?C.GoodTeachersMattersD.AIandTechnologyDFewthingsaremoresatisfyingthansleepinglateonweekends.Butthoughtheextraslcepmayimproveyourmood,itdocsnotappeartoimproveyourhcalth.Anewstudyshowsthatso-called"recoverysleep"cannotresetthebodyclockandmayactuallyleadtosomeserioushealthproblems.ChristopherDepner,anassistantprofessorattheDepartmentofIntegrativePhysiologyoftheUniversityofColoradoBoulder,said,"Slecplosscaninfluencearangeofphysiologicalsystems.Itcanincreaseourriskofhighbloodpressureandheartdisease,itcancauseweightgain,anditcanincreaseourriskofdiabetes(摅尿病).”Inthestudy,Depnerandhiscolleaguesdividedthevolunteersintothreegroups.Onegroupwasallowedtogetafullnight'ssleep.Thenextwaskepttojustfivehourscachnight.Andthethirdgroupwentbackandforth,limitedtofivehoursofshut-eyeduringtheworkweek,allowedasmuchsleepastheywantedovertheweekend,andthenbacktofivehoursforthelastcoupleofdays."Wefoundthatalossofslecpleadstoa'sharpincreaseinsnacking.Butevenmoresurprising,sleepingontheweckenddoesn'thelp-andevenmakesthingworse"saidDepener."Aftertheweekend,whentheywentbacktogettinginadequatesleepduringthewokorschoolweek,theirliverandmuscleinsulinsensitivityorbloodsugarregulationwasreduced.Andthisisnotsomethingwefoundinpcoplewhohadlong-terminadequacysleepschedulesSoit'spossiblethatthisisaworseningofthebody'sabilitytoregulatebloodsugarforthesespecifictissuesaftertheweekend.Somakeadatewithapillow.Andtradethesweetsforsweetdreams.32.Whateffectdoessleeplosshaveonpeople?A.Itresultsinchangesintheirmoods.B.Itdoesharmtothebodyclock.C.Itdamagestheliverseverely.D.Itmakespeoplebecomeheavier.33.Whatdoweknowaboutthevolunteersinthesecondgroup?A.Theywereallowedtohavetheleastsleepinaweek.尚一英语试卷共11页第6页

(1)若测出遮光条的宽度为d,实验时将物块从图示位置由静止释放,由数字计时器d,读出遮光条通过光电门的时间△,则物块经过光电门时的速度为(用对△t,应物理量的符号表示)。

14.用相同的滑轮和绳子分别组成如图所示的两个滑轮组,相同时间内把相同的重物匀速提升相同的高度,若不计绳重及摩擦,下列说法正确的是A.甲、乙滑轮组中绳子的自由端的拉力相等B.甲滑轮组拉力做功的功率小于乙滑轮组C.甲、乙滑轮组所做的额外功相等D.甲滑轮组的机械效率小于乙滑轮组的机械效率

动,此时A与C均保持静止,重力加速度为g0,下面说法正确的是A.物块A受到的是静摩擦力,大小等于mgB.物块A对B施加的摩擦力大小等于mgC.水平恒力F的大小等于mgD.增大水平恒力F的大小后,物块A无法继续保持静止