热和能知识是初中物理中的重要一章。在本章的学习中,关键要掌握重要的物理概念之间的联系和区别,并用能量的观点把它们串联起来。1.温度、热量和内能的关系温度表示物体的冷热程度,是一个状态量,温度的变化可以反映物体 Heat and knowledge can be an important chapter in junior high school physics. The key to learning in this chapter is to grasp the connections and differences between the important physical concepts and to concatenate them from the energy point of view. 1. The relationship between temperature, heat and internal energy Temperature represents the degree of hot and cold objects, is a state quantity, the temperature changes can reflect the object