一、小议功和能例判断下列各题正误:1.具有能的物体不一定在做功. 2.具有能的物体一定在做功. 3.物体做功把所有的能都耗尽. 4.不做功的物体一定不具有能. 只有第一句话是正确的.要准确判断这几句话,必须理解功和能的概念. 在物理学中,把物 First, a small discussion of power and can be used to judge the following questions are correct: 1. The energy of the object is not necessarily doing work. 2. The energy of the object must be doing work. 3. The object does work all the energy is exhausted. The object of work must not have energy. Only the first sentence is correct. To accurately judge these words, we must understand the concept of work and energy. In physics,