初中物理热学部分的“内能”是重要概念之一,由于内能概念抽象,且与温度、体积、做功、热传递之间存在着较为复杂的关系,是学习中的一个难点。学习过程中往往过于强调温度与内能的关系,而忽视内能与体积的关系,所以同学们对于内能概念的理解往往是片面的,表现在处理关于内能的具体问题时只从温度去考虑,从而形成一个不完整的内能概念,给今后的物理学习带来障碍。要解决这一问题,需要同学们把内能这个概念真正的理解透,在学习中构建一个完整的内能概 The “inner energy” of junior middle school physics thermodynamics is one of the important concepts. Because of the abstraction of internal energy and its complicated relationship with temperature, volume, work and heat transfer, it is a difficult point in the study. In the process of learning, the relationship between temperature and internal energy is often overemphasized, while the relationship between internal energy and volume is neglected. Therefore, the students’ understanding of the concept of internal energy is often one-sided. When dealing with specific problems about internal energy, students only go from temperature Consideration, thus forming an incomplete concept of internal energy, to bring obstacles to the future of physical learning. To solve this problem, we need the students to understand the concept of internal energy thoroughly, build a complete internal energy in learning