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在验证动量守恒定律的实验中 ,“小球落点问题”是很多学生甚至相当多的教师长期以来一直所忽略的问题 :实验中小球落点位置一定都如高中物理教材所叙述的那样吗 ?小球落点的位置由什么因素决定呢 ?问题 :用图 1所示装置通过半径相同的A、B两球的碰撞来验证动量守恒定律 (m1、m
In the experiment of verifying the law of conservation of momentum, the problem of “ball drop point” is a problem that many students and even a considerable number of teachers have long neglected. Is the location of the ball drop in the experiment as described in the high school physics textbooks? What is the decisive factor for the position of the ball drop point? Question: Use the device shown in Fig. 1 to verify the law of conservation of momentum through the collision of two ball A and B with the same radius (m1,m