内能是初中热学部分的重要概念之一,是初中物理教学中的一个难点。由于内能的概念很抽象,并且与温度、做功、热传递之间存在着较为复杂的关系,所以学生对于内能概念的理解往往是片面的,常常在脑海里形成一些错误的认识,希望同学们从下面常见的几种误区中得以正确理解。 Internal energy is one of the important concepts in the junior high school thermals, and it is a difficult point in junior middle school physics teaching. Because the concept of internal energy is very abstract, and there is a more complicated relationship between temperature, work, and heat transfer, students’ understanding of the concept of internal energy is often one-sided, and often forms some wrong understanding in the mind. They are correctly understood from the following common misunderstandings.