在全日制普通高级中学教科书(必修加选修)物理第二册中,学生实验一“验证动量守恒定律”要求用两个大小相同但质量不等的小球的碰撞来验证动量守恒定律。在学生的实验数据分析中,我们发现,绝大多数的实验结果是碰后的总动量大于碰前的总动量。对此,我们 In the second full-time ordinary high school textbook (required for optional), Book 2 of the student’s experiment, “Verification of Conservation of Momentum,” requires verification of the law of conservation of momentum using the impact of two small balls of the same size but of different masses. In the student’s experimental data analysis, we found that the vast majority of the experimental results are the total momentum after the collision is greater than the total momentum before the collision. In this regard, we