人教版高中物理必修一高一上学期期中考试中澳班试题无答案.docx
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人教版高中物理必修一高一上学期期中考试中澳班试题无答案.docx
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人教版高中物理必修一高一上学期期中考试中澳班试题无答案
高中物理学习材料
(灿若寒星**整理制作)
1、Alisonridesherskateboarduparamp.Shebeginswithaspeedof8.0ms−1butslowswithaconstantaccelerationof2.0ms−2.Shetravelssomedistanceuptherampbeforecomingtorest,thenrollsdownagain.Ignoringairresistanceandfriction,calculate:
athedistancethatAlisontravelsuptherampbeforestopping
bthetimethatittakesAlisontoreachthishighestpoint
cAlison’svelocityafter5.0shaselapsed.
2.Aliciaisbouncingverticallyonatrampoline.Herhighestbouncewas3.5m.
aWhatwasherinitialspeed?
bWhatwasheraccelerationatthemaximumheight?
3、Kirstyisridinginabobsledthatisslidingdownasnow-coveredhillwithaslopeat30°tothehorizontal.ThetotalmassofthesledandKirstyis100kg.Initiallythebrakesareonandthesledmovesdownthehillwithaconstantvelocity.
aWhichoneofthearrows(A–F)bestrepresentsthedirectionofthefrictionalforceactingonthesled?
bWhichoneofthearrows(A–F)bestrepresentsthedirectionofthenormalforceactingonthesled?
cCalculatethenetfrictionalforceactingonthesled.
dKirstythenreleasesthebrakesandthesledaccelerates.Whatisthemagnitudeofherinitialacceleration?
4.Acarbeingdrivenbyalearner-drivertravelsalongastraight-linepathfor20s.Thefollowinggraphrepresentsthemotionofthecar.Thepositivedirectionisunderstoodtobeeast.
aForhowlongdoesthecarmoveinaneasterlydirection?
bWhatistheaverageaccelerationofthecarduringthefirst6seconds?
5.agolfballofmass150gishithorizontallyfromthetopofa40.0mhighcliffwithaspeedof25.0ms–1.assuminganaccelerationduetogravityof9.80ms–2andignoringairresistance,calculate:
athetimethattheballtakestoland
bthedistancethattheballtravelsfromthebaseofthecliff
cthevelocityoftheballasitlands
6.Abatsmanhitsacricketball(fromgroundlevel)ataspeedof30.0ms–1andatanangleof36.9°tothehorizontalasshown.Airresistancecanbeignored.
aWhatisthemaximumheightthattheballreaches?
bWhichofthearrows(Q–T)inFigure4bestrepresentstheresultantforceontheballatpointX?
7.MeredithandHilaryarestudyingcollisionsbyslidingblockstogetheronafrictionlesstable.Meredithslidesablockofmass2kgwithaspeedof3ms–1thatcollideswithablockofmass1kg,whichwasatrest.Afterthecollisionthe1kgblockhasaspeedof4ms–1.ThesituationsbeforeandafterareshowninFigurebelow.
aShowthat,aftertheimpact,thevelocityofthe2kgblockis1ms–1.
bIndicatewhetherthisisanexampleofanelasticorinelasticcollision.Includecalculationstojustifyyouranswer.
cWhataverageforcedoesthe2kgblockexertonthe1kgblockduringthecontacttimeof0.01s?
8.Achildofmass30kgisplayingonamaypoleswinginaplayground.Theropeis2.4mlongandatanangleof60˚tothehorizontalassheswingsfreelyinacircularpath.Ignorethemassoftheropeinyourcalculations.
aCalculatetheradiusofhercircularpath.
bIdentifytheforcesthatareactingonherassheswingsfreely.
cWhatisthedirectionofheraccelerationwhensheisatthepositionshowninthediagram?
dCalculatethenetforceactingonthegirl.
eWhatisherspeedassheswings?
9Acraneonabuildingsiteliftsan800kgloadfromgroundleveltoaverticalheightof90mataconstantspeedof2.0ms–1.Ignorethemassofthecable.
aHowmuchworkisdonebythecraneinliftingtheloadthroughthisdistance?
bWhatisthemechanicalenergyoftheloadwhenithasreachedaverticalheightof50m?
cCalculatethepowerdevelopedbythecranemotorduringthisoperation.
10.Anathleteisswingingahammerofmass7.0kginacircularpathofradius1.5m.Calculatethespeedofthehammerifitcompletes3.0revolutionspersecond.
11.Theforce–compressiongraphforthespringfromanoldpinballmachineisshown.
aDeterminethemagnitudeoftheforceneededtocompressthisspringby2.0cm.
bCalculatethespringconstantforthisspring.
cHowmuchworkmustbedoneinordertocompressthisspringby2.0cm?
dCalculatetheelasticpotentialenergystoredinthespringwhenitiscompressedby1.0cm.
inclinedplane
Tension
摩擦力
动量
Centripetalforce
矢量/标量
perpendicular/parallel
gradient
加速度
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