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自然界中不同形式能之间可以相互转化和转移,而在这种转化和转移中,功扮演着一个重要的角色.功是能量转化的量度这一规律,包含两层意义:一是做功过程就是能量转化的过程;二是做了多少功,能量就转化了多少.不同力做功可量度不同形式能的转化多少,小结高中阶段所学功能关系,有这么几种具体形式:一、合外力做功等于动能增量——动能定理合外力对某一物体做功的过程,是物体的动能与其他
In the natural world, different forms of energy can be converted and transferred between each other. In this transformation and transfer, work plays an important role. The function is the law of measurement of energy transformation, which contains two layers of meaning: First, the process of doing work is The process of energy conversion; the second is how much work is done, how much energy is converted. How different powers can be used to measure the conversion of different forms of energy, and the function relationships learned during the high school stage are summarized in several specific forms: 1. Work with external forces Equal to the kinetic energy increment - the kinetic energy theorem combines external forces to perform work on an object, which is the kinetic energy of the object and other