在物理习题中，有些习题看似完全一样，其实质是完全不同的．这就要求学生在做这类习题时，要认真分析题目的实质和挖掘其中的隐含条件，不要被表面现象所迷惑以及被看似类同的习题而产生误解．下面分别来看几道习题．例１如图１所示，质量相等且均为ｍ的图１两个小球Ａ、... In physics exercises, some exercises seem exactly the same and their essence is completely different. This requires students to carefully analyze the essence of the topic and excavate the implied conditions when doing such exercises. Do not be confused by the appearance of the phenomenon and be misunderstood by seemingly similar exercises. Let’s look at a few exercises. Example 1 as shown in Figure 1, the same quality and both m Figure 1 two small balls A, ...