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2020年中考物理试题分类汇??3?简单机械专? - 百度文库

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3.20xx.16ͼʾ.AΪӲ.OΪ֧.Ӳˮƽֹ.ɲƵʾΪ_____N.ӲܵΪ______N.ܷͼеĵɲưͼʾķͬһӲܵ?______,______. 4.20xx.21ͼʾ.б泤2m1m.һΪ24kgбб׶.Ҫ˷ Jбǹ⻬.бϵ Nڡǯƿƿͼ¼ϵĻֹ֡б g=10N/kg 5.20xxɶ.18ͼ,ͼʾͼ,ΪʦѡһѼƤļ,ѡ (ѡAB C).ѡĿΪʡ ʵ 1.20xxij.Сÿ̶Ⱦȵʸܸ˽ܸ̽ƽʵ顣 1ʵǰΪ.Ӧܸ˵ڵ λƽ.ܸ˵е֧.ܸ˾ֹʱ.ָܸ³.ʱӦƽĸ ѡ󡱻ҡ˵ڡ 2ƽ.ڸܸB㴦6.ͼʾ.A㴦Ӧ ͬĹ.ܸȻˮƽλƽ⡣ 5 / 21 3ͼСõɲijʵ龰.֪ܸÿ5cm.ÿ0.5N.뽫ɲƵʾ± ʵݲϸܸƽ.ԭ 2.20xx.24Сøܸʵ.ʵʱʹõÿ.ܸڿ߼ľ.ش⣺ 1ͼʾ.ܸе֧.ܸ˾ֹʱ.ָܸ˵³.ʹܸˮƽλƽ.Ӧܸ˵ƽĸ ڡܸˮƽλƽ.A2.Ҫʹܸˮƽλٴƽ.B 룻֮ABٸ1.ܸ˽ ѡ˳ʱתʱת 2ͼʾ.СACֱҵص.һƽ.ʢ.̼Ӽ.ƽһܸɵģ 3Сȷʹƽʱ ټ֧Oijԭƫ.ֵ ʵֵѡڡڡСڡ ڼԭ.ֵ ʵֵѡڡڡСڡ 3.20xxΫ.22гƷزһʯܶ.ʵ£ Aȡһ.ϸ߽.λ.ֱˮƽƽ.λüΪO.ͼʾ BȪˮƿձ״.б̶.ƿװˮˮڴ.ϸϵʯ.ʯ黺ˮ.ˮȫװϴ.ͼʾ Cȡʯ.ˮ֣װˮϴʯֱڿO.ƶλʹˮƽƽ.ÿ̶ȳ߷ֱO㵽ҵľl1l2.ͼʾ 6 / 21 1֪ˮܶΪˮ.ʯܶȦʯ=_____ĸˮõʾ 2ʵ鷽.Ӵϸȶʵ____ѡСޡӰ죻 3ͼʾ.ƿеˮδװˮ.ʵ_____ѡƫ󡱡ƫС򡰲䡱 4.20xxͲ.22ճ͹ũҵ.߻еЧҪ塣߻еЧ.ҪоӰеЧʵس.Ѱ취 1Ϊ̽ӰеЧʵ.Сѡȡ˴СͬĻ.ͼ׺ͼװýʵ.¼±С ٱȽ12ʵ鷢֣лһʱ.Ĺ________.еЧԽߡ ڱȽ34ʵ鷢֣ĻеЧʻ________йء ۱Ƚ________ʵ鷢֣ûһʱ.еЧĸ߶޹ء ܵ5ʵͼ________װɵ.ж________ ͼ׵װ.6N2.5NѸ.ĻеЧΪ________ɼûп̶ȳ.ֻв.ҲԲĻеЧʡ 7 / 21 2Сͼװʵ鷢֣бĻеЧбб̶ȺĦй.޹ءбб̶Ȳ.Բ________ķСĦ.ӶͲбĻеЧʡ 3ʵ⹦ԽС.ܹԽӽùһóûж⹦.ܹùɼʹκλе________ɵĵóо________ A Bţٵһ C׵ԭ Dŷķ ġ 1.20xx.25Сǿͼʾװ10sڽΪ450NĻ2m.˹FĹΪ120W 1װù 2FĹ 3ûĻеЧʡ 2.20xx.28ͼʾ.ijŶû齫4.8103N.Ϊ100dm3̳ˮ.100NϹa.bc.aҶ.bڶֺͶ.c.̹ʼջ.ȫûˮʱ.ĻеЧΪ95%ˮ1103kg/m3.g10N/kg.ءĦԼˮԲƣ⣺ 1ûˮʱܵĸǶ 8 / 21

2020年中考物理试题分类汇??3?简单机械专? - 百度文库.doc ĵWordĵصԣ㸴ơ༭ղغʹӡ
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