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衡水金卷2025届高三摸底联考(河北)-(物理)试卷答案试卷答案

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CperofvoceD.Assistancetohealthcaredelivery.30.Whatcanwelearnabouttheparticipantsfromparagraph4?A.Thosewithalowvoicescorewillendupwithmentaldisorder.B.Thosewithahighvoicescorearemorethanthosewithalowone.CThosewithalowvoicescorearelesslikelytosufferheartproblems.D.Thosewithahighvoicescorearelesslikelytosufferheartproblems.31.Whatcanbeinferredfromparagraph5?A.Spotbuild-upcanbefoundinmedicalteststhroughvoice.B.Thescoresintheresearchmayexplainthepuzzleofvoice.C.Theautonomicnervoussystemmaycontributetoheartproblems.D.Aperson'slevelofhearthealthcanbeconveyedthroughhisvoice.DSolarfarmsofferonewaytomeettheworld'sdecarbonization()targets,buttheycouldalsobeusedtodealwithanotheroftheplanet'sbigproblems:lossofbiodiversity.Theapproachisstartingtotakeoff.ResidentsofBarnsdale,forexample,willsoonplayhosttoanewsolarfarmlinedwithgrassfieldofwildflowersandnativegrasses,whichBanksGroup,thedeveloper,sayswillpromotepollinating(授粉)insects.

'·.Theideacomesfromthecombinationoftwolong-term-trends:decliningnumbersofpol-linatinginsectsandthegrowingamountoflanddistributedtosolarfarms.AccordingtotheCenterforBiologicalDiversityinArizona;morethan40percentofinsectpollinatorsgloballyarelistedas"highlythreatened"-anissuethatcould'seriouslythreatenfoodsecurity.Mean-while,solar-energy.competencehasbeen'increasing.MatthewO'Neal,ascientistatlowaStateUniversity,wouldliketoseemoresolardevelopers'seizethisopportunity.Thebenefitsofsuchprojectsdon'tstopattheinsects.ResearchfromYale'sCenterforBusinessandtheEnvironmentindicatesthatpollinator-friendlysolar:farmscanraisecropoutputonnearbyfarmland;increasetherechargingofgroundwaterandreducesoilerosion()In2018,aUSDepartmentofEnergy'studyfoundthatifallexistingandplannedsolarfa-cilitiesnearsoybeanandcranberrycropsincludedpollinator.homeandincreasedoutputbyjustonepercent,annualcropvaluescouldrisebyUS$1:75million,US$4millionandUS$233,000,respectively"Farmerscouldidentifyunprofitableares,suchaspoor,highlyerodiblelands,ascandi-datesforapollinator-friendlysolarfarmThere'sthepotential'toincreasetheirnetincomewithpollinatormotivationprojectssays"'Neal:Withenoughforwardthinking,thesestudiesshow,cleanenergycanprovidenewenvi-ronmentalopportunities."We'reatatuining'point.withenergyproductionandwe'reseeingmoreopportunitiestoprovideextrabenefits'thatwouldn'thavebeenconsideredwitholdermethodsofenergygeneration,saysONealYouneverheardofacoalimineplanningpolli-natorconservation,”2i:1…八.7；f1【古三茄闭笛6而1计n而11004COTTT扫描全能王创建

衡水金卷2025届高三摸底联考(河北)-(物理)试卷答案第一部分

9.实物粒子的波动性不容易被观察到,可以利用金属晶格(大小约10^-10m)作为障碍物观察电子的衍射图样从而研究其波动性,方法是让电子通过电场加速,然后让电子束照射到金属晶格上,从而得到电子的衍射图样.已知电子的质量为m、电荷量为e1初速度为零,加速电压为U,普朗克常量为h,,则下列说法中正确的是A.该实验中加速电压U形成的电场一定要是匀强电场B.实验中电子束的德布罗意波长=h2cmlC.加速电压U越大,电子束的衍射现象越不明显D.若用速度相同的质子代替电子,衍射现象将更加明显

衡水金卷2025届高三摸底联考(河北)-(物理)试卷答案第二部分（待更新）

15.(15分)为研究一均匀带正电球体A周围静电场的性质。实验小组在干燥的环境中先将绝缘支架放置在一灵敏电子秤上,再将小球A放在绝缘支架上,静止时电子秤的示数为F然后将带正电的小球B用绝缘细线悬挂于球A的正上方Q点,电子秤稳定时的F0。F1,示数为F,如图甲,此时A、B球心间距离为3x。现缓慢提着小球B从点Q沿竖直方向3x0。P,B下落到点P,在P点时细线拉力刚好为零,用刻度尺测出小球B下落过程中A、B球心间距离x.小组同学查阅资料后,选取无穷远处电势为零,作出了球体A上方各点电势随x变化的图像如图乙(反比例图像)。已知点M(未画出)和点P到A球球心的距离分别为2x0和x0,,小球B所带电量为q(q>0),且远小于球A所带的电量,球A与球B之间的距离远大于两球的半径,忽略空气阻力的影响,重力加速度为g4xyt(1)求点Q处,由球A所激发的电场强度的大小;(2)求小球B位于点M时,电子秤的示数;(3)若小球B缓慢下落到M点时细线突然断裂,求小球B下落过程中的最大速度。