2025届贵州省高三年级9月联考-(物理)试卷答案

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2025届贵州省高三年级9月联考-(物理)试卷答案试卷答案

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C.thelastthingtobearD.themostimportantpoint31.Whatisthewritingpurposeofthispassage?A.Toproveanidea.B.Toconfirmaconcept.CTointroduceatrend.D.Todescribeanevent.DPlayingarhythm-basedgameforeightweekshelpsnon-musiciansbecomebetteratrememberingrecentlyseenfaces.Thissuggeststhatlearningtoplayaninstrumentcouldimproveshort-termmemoryfornon-musicaltasks.Therehavebeenseveralstudiesshowingthatmusicianstendtohavebettershort-termmemorythannon-musicianswhenitcomestomusic-relatedtasks,suchasrememberingmusicalsequences.Itislessclearwhetherthesebenefitscarryovertonon-musicaltasksortonon-musicianswhoarelearningtoplayaninstrument,andhowthesechangesmightactuallybeseeninthebrain.TheodoreZantoattheUniversityofCalifornia,SanFrancisco,andhiscolleagues,randomlyassignedagroupof47non-musicians,agedbetween60and79,toplayeitheratablet-basedmusicalrhythmtraininggame,whichemulates()learningtohitadrumintimewithateacher,orawordgameforeightweeks.Atthestartandendoftheeightweeks,participantstookashort-termmemorytesttomeasuretheirabilitytorememberafacetheysawsecondsbefore.Onlythegroupwhoplayedtherhythmtraininggameshowedanimprovementontheirinitialscoresofaround4percent.Thissuggests,saysZanto,thattherhythmtrainingisimprovingthebrain'sabilitytofocusattentiononatasktogetitreadyfortransformingwhatyouaredoingintomemory.Theabilitytorememberandrecognisefacestendstodeclineasweage,soanypossiblemechanismtoturnthattheoppositewayisimportant,saysJoshDavisattheUniversityofGrecnwich,UK.However,theeffectdemonstratedinthisstudyneedstobeshowninreal-worldfacialrecognitionscenariosaswellasinlab-basedteststobecompletelyconvincing,saysDavis.TheodoreZantohopesthatextendingtrainingperiodbeyondeightweeksmayleadtoastrongereffectonmemoryrecall.32.Whatcanweknowinthefirsttwoparagraphs?A.Musiciansaregoodatrememberingtasks.B.Musicianscancasilychangetheirmemory.C.Musiciansarcmorelikelytomemorizemusicaltasks.D.Musicianshavebettermemoriesthannon-musicians.33.Whycanrhythmedgamesbenefitmemoryimprovement?

2025届贵州省高三年级9月联考-(物理)试卷答案第一部分

字计时器记录的遮光条通过光电门的时间为t.滑块通过光电门时的速度大小为,m(2)多次改变滑块的质量m,重复(1)中操作,得出多组m与t的值,以.1m为横坐标、1t^2为纵坐标标作出的的1t^2-1m图像如图乙所示(图中的a、b均为已知量),则撤去外力瞬间弹簧的弹性势能Ep==;已知当地的重力加速度大小为g,则滑块与桌面间的动摩擦因数.

2025届贵州省高三年级9月联考-(物理)试卷答案第二部分（待更新）

6.在如图所示的电路中,L是自感系数足够大的线圈,它的电阻可忽略不计,L1和L2是两个完全相同的小灯泡,下列说法正确的是LA.当闭合开关S时,L1、L2同时亮,最后两灯一样亮B.闭合开关S后,,L1亮后逐渐变暗,L2亮后逐渐变亮C.当断开开关时,两灯同时熄灭D.断开开关S时,L2立即熄灭,L1亮一下然后逐渐熄灭,流过L1的电流方向从A通过L流到B