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机械能守恒是基于物理动力学知识的延伸,是利用能量观点来解决问题的初探,对于强化学生的物理思维逻辑有极其重要的意义。学生由于对定理内涵不明确、原理变通理解不到位,使得对机械能守恒定律内容的应对和应用变式的解答并不擅长。我们在教学中尝试将知识内容进行递进式系统归纳,为学生提供清晰的学习思路。
The conservation of mechanical energy is based on the extension of the knowledge of physical dynamics. It is a preliminary exploration of using energy viewpoint to solve the problem, which is of great significance to strengthen students’ logic of physical thinking. The students are not good at understanding the connotation of the theorem and not understanding the principle in a flexible way so that the solutions to the law of the conservation of mechanical energy and the application of the variant are not good. In teaching, we try to systematically summarize the contents of knowledge in order to provide students with a clear idea of learning.