高二《物理》第十一章“分子间的相互作用力”一节,由于分子力的概念抽象,学生难以理解,《教师教学用书》建议“教师借用连有弹簧的小球来比喻分子间作用的情况.”但此装置通过演示发现存在三点不足:一是制作时小球与弹簧不好连接;二是因弹簧的存在而显得不够形象,影响直观效果 The eleventh chapter of “Physics” in the “Physics” section “Intermolecular Interaction Forces” is difficult for students to understand due to the conceptual abstraction of the molecular force. The “Teacher’s Guide Book” suggests that teachers use the ball with springs as a metaphor for the intermolecular role. The situation. "But this device through the demonstration found that there are three shortcomings: First, when the production of the ball and the spring is not well connected; Second, due to the presence of the spring and appears not enough image, affect the intuitive effect