新全日制普通高级中学教科书(实验修订本必修加选修)验证动量守恒定律实验系统误差不可避免.这个实验的目的和要求是通过两球作对心碰撞后做平抛运动来验证动量守恒定律,原理是利用“等效”观念简化实验测定的设计思想.先来比较新旧教科书实验的差别.旧教科书实验仪器包括 The new full-time ordinary high school textbooks (experimental revisions must be added plus optional) to verify the momentum conservation law experimental system error is inevitable. The purpose and requirement of this experiment is to verify the law of conservation of momentum through the use of two balls for colliding after the collision to do the plane throw motion. Is to use the concept of “equivalent” to simplify the experimental design of experimental ideas. First to compare the difference between the old and new textbook experiments. Old textbooks include experimental equipment