[精品]江阴长泾中学高三物理测试题参考答案

江阴长泾中学高三物理测试题参考答案1C2C3A4BD5A6C7C8C9BC10ABD11圆环形电极（4分），A接电源的负极，圆环形电极接电源正极，连线图略（4分）12、03分图略3分电量85103C在82103C与88103C之间均得分3分电容141103F在137103F与147103F之间均得分3分13、解不正确。（4分）在两质点相遇之前，它们之间的距离S也可能不断减小，直至S0（相遇），而不存在变小后变大的情况，这完全取决于两质点之间的初始距离S与V0、A之间的大小关系TSTAS221210当时，T，S取得最小值SMINS5分V00AV20当时，T，S不是最小5分其它分析方法只要合理，同样给分。AS20014、解单个质子通过加速电场时，有，单位时间内通过加速电场的质子流总质量M，M/EU2UMV21，总电量Q，有，得，因而（其中U2MVINEIVMF1023/T1S）15、解1电键S闭合时，R1、R3并联与R4串联，R2中没有电流通过UCU42/3对带电小球有MGQEQUC/D2/3Q/D得3/2MGD/Q2电键S断开后，R1、R4串联，则UC/23/4MGD/Q1小球向下运动与下极板相碰后，小球带电量变为Q，向上运动到上极板，全过程由动能定理得MGD/2QUC/2MGDQUC02由12式解得Q7Q/616、解（1）（4分）（2）由于重力和电场力都是恒力，所以它们的合力也是恒力。在圆上各点中，小球在平衡位置A点时的势能（重力势能和电势能之和）最小，在平衡位置的对称点B点，小球的势能最大，由于小球总能量不变，所以在B点的动能EKB最小，对应速度VB最小，在B点，小球受到的重力和电场力，其合力作为小球做圆周运动的向心力，而绳的拉力恰为零，有（3）由于总能量保持不变，即EKEPGEPE恒量。所以当小球在圆上最左侧的C点时，电势能EPE最大，机械能最小，（1分）由B运动到A，W合力（EPAEPB），W合力F合2L所以EVB2J总能量EEPBEKB25J（2分）由CA，WFEFEL（1SIN37）096JWFEEP2（EP2为C点电势能）所以C点的机械能为E机CEEP2154J（3分）17、（1）若在时间T1S内，物块与长木板一起运动，加速度为A，则F21MG2MA物块受合外力FMA2MG物块在长木板上相对滑动。设撤去F时，长木板的速度为V1，滑块速度为V2，由动量定理，对物块2MGTMV20对整体（F21MG）TMV1MV2代入数据可解得V14M/S，V22M/S长木板的速度大小为4M/S。（2）设撤去拉力后，经时间T，两者获得共同速度为V，由动量定理，对物块，2MGT1MVMV2对长木板，22MGT11MGT1MVMV1将V1和V2的数值代入，得T102S，V24M/S在T1S内，物块相对于长木板的位移S1V1V2T/21M在T102S内，物块相对于长木板的位移S2V1V2T1/202M木板的长度最小值为LS1S212M（注或用相对运动知识求解，列式简单）3滑块与木板有了共同速度后，在摩擦力作用下均做减速运动，物块相对于木板向右运动，木板与物块先后停下，由动能定理，得设滑块位移为X2，则2MGX20MV212木板位移为X1，则（2MG21MG）X10MV212这时间内物块相对于木板的位移S3X2X1072M物块最终离板右端的距离DS1S2S3048M评分说明共16分。（1）各1分，式2分；（2）式各1分，（3）式各1分，式2分。（计算题有其它解法正确的，相应给分。）18、解1当粒子由TNT（0,1,2,刻进入电场,侧向位移最大,且向下偏3分DMQTUDQTDMQUTDQS1873213322020001当粒子由TNT0,1,2,刻进入电场,侧向位移最大,且向上偏3分DMQTUS18322020在距靶MN的中心O点下方至上方范围内有粒子击中2分DMQTU18720DQ18202得4分21870DQTS2093电场力对所有粒子做的功都相同,为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