能的转化和守恒是贯穿力、热、电、磁、原子物理学的最重要的一条主线,也是所有物理过程所要遵循的客观规律,是高考考查的重点.命题一般围绕能源和能量耗散、功能关系、能量守恒定律三个方面展开,解决此类问题关键在于正确把握能量转化的方式和能量转化的守恒性,把相应的物 The transformation and conservation of energy is the most important one that runs through the fields of force, heat, electricity, magnetism and atomic physics, as well as the objective law to be followed by all physical processes, and is the focus of the college entrance examination.propositions generally focus on energy and energy dissipation, Function relationship and energy conservation law. The key to solving such problems lies in correctly grasping the way of energy conversion and the conservation of energy conversion,