关于惯性知识的诸多实验是学生比较熟悉的.例如图1,用水平外力弹击硬板,硬板飞出,鸡蛋落入杯内水中,实验表明了鸡蛋具有惯性.以此为背景的物体多阶段运动的定量计算问题,由于强化了对多种物理思维的考查,突出了物理学科应用和迁移知识的能力,是一种比较复杂模型.处理该问题时,进行合理地化归,把受力分析和运动过程示意图合二为一,情景示意,可使复杂问题简单化. Many experiments on inertial knowledge are familiar to students. For example, in Figure 1, a hard plate is struck with a horizontal force, the hard plate is ejected, and the egg falls into the water in the glass. Experiments have shown that the egg has inertia. Many objects are used as the background. The problem of quantitative calculation of stage movements, due to the intensification of examinations of various physical thinking, highlights the ability of physics applications and the ability to transfer knowledge, is a more complex model. When dealing with this problem, it is reasonable to return the force. The diagrams of the analysis and movement process are combined into one, and the scenarios are illustrated, which can simplify the complex problems.