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质能方程是爱因斯坦从相对论得出来的一个重要的结论。因为相对论的知识在高中物理课程中不可能多作介绍,所以教材只引用了这个结论。质能方程是计算原子核的结合能,并用以解释原子核变化时发生质量亏损现象的理论基础。因此,使学生正确理解质能方程的物理意义,避免把这个方程理解为质量就是质能或质量可以变成能量,就成了教学中的一个重点和难点,需要认真地探讨。为了很好地解决这个问题,建议在教学中,从如何求原子核的结合能引出质能方程
The energy equation is an important conclusion that Einstein derived from the theory of relativity. Because the knowledge of relativity cannot be introduced in high school physics courses, the textbook only cited this conclusion. The equation of mass energy is the calculation of the binding energy of the nucleus and is used to explain the theoretical basis for the mass loss that occurs when the nucleus changes. Therefore, to enable students to correctly understand the physical meaning of the equation of mass energy, to avoid understanding this equation as quality is the quality of energy or quality can become energy, has become a key and difficult in teaching, need to be seriously discussed. In order to solve this problem well, it is suggested that in teaching, how to derive the energy equation from the binding energy of the nucleus