初中物理中,有些问题或概念十分相似,不易辨别,不易理解。我们在教学过程中应该帮助学生有效区分、理解。一、“温度”“热量”和“内能”三者的联系与区别1.热量和内能概念的区别内能是指物体内大量分子无规则运动时的动能与分子势能的总和,是由系统的状态决定的。如果状态确定,内能便确定了。要改变系统的内能,有热传递和做功两种方式。而热量是指在热传递过程中物体吸收或放出能量的多少,也就是热传递过程中内能 Middle school physics, some problems or concepts are very similar, not easy to identify, not easy to understand. We should help students to effectively distinguish and understand in the process of teaching. First, the relationship between “temperature ” “heat ” and “internal energy ” 1. The difference between the concept of heat and internal energy Can refer to the kinetic energy and molecular potential The sum of, is determined by the state of the system. If the state is ok, the internal energy is determined. To change the system’s internal energy, there are two ways of heat transfer and work. The heat is the heat transfer process in the object to absorb or release the amount of energy, which is the process of heat transfer within the energy