高中物理学生实验《碰撞中的动量守恒》是用两个大小相同但质量不等的小球在斜槽末端发生水平方向上的正碰来验证动量守恒定律。实验巧妙地用小球在碰撞前后飞出的水平距离来代表碰撞前后的水平速度,从而把速度的测量简化为长度的测量。这是基于下述原理:做平抛运动的小球落到地 High School Physics Student Experiment “Momentum conservation in collision” verifies the law of conservation of momentum by using two equally-sized balls of different mass that are colliding horizontally at the end of a chute. Experiments cleverly use the horizontal distance of the ball flying before and after the collision to represent the horizontal velocity before and after the collision, thus simplifying the measurement of the velocity to the measurement of the length. This is based on the principle that the ball making a flat throw falls to the ground