动量守恒定律和能量守恒定律的综合应用是中学物理教学的重点,也是高考命题的热点.这类题目难度大、综合性强、灵活度高,有利于考查考生理解能力、推理能力和综合分析能力,能够较好地反映考生对物理主干知识的掌握程度.笔者通过多年的教学实践探索,认为要能得心应手地处理此类 The comprehensive application of the law of conservation of momentum and the law of conservation of energy is the focus of middle school physics teaching, and is also the hot spot of college entrance examination propositions. Such topics are difficult, comprehensive and flexible, and are conducive to examine examinees’ comprehension ability, reasoning ability and comprehensive analysis ability. Can better reflect the examinee’s mastery of the physical backbone of the knowledge. The author through many years of teaching practice and exploration, that we must be able to deal with this kind of handy