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功能关系是高中物理最重要、最基本的主干知识之一．它不但是《机械能》全章内容的线索,也是联系各章知识的一条主线,是我们分析和解决物理问题的重要依据,其应用渗透在整个高中教学过程中．教材指出:“做功的过程就是能量转化的过程,做了多少功,就有多少能量发生转化．所以,功是能量转化的量度．”功能的这种关系,不但揭示了各种形态的能量转化是通过
Functional relationship is one of the most important and basic backbone knowledge in high school physics. It is not only the clue of the full chapter content of “Mechanical Energy”, but also a main line linking each chapter’s knowledge. It is an important basis for us to analyze and solve physical problems. Its application penetrates the entire high school teaching process. The textbook pointed out: “The process of doing work is the process of energy conversion. How much work is done, how much energy is converted. Therefore, work is a measure of energy conversion.” This relationship of functions not only reveals the various forms of energy conversion. It is through