机械能与内能转化的实验很多,苏科版教材列举的实验有弯折铅丝、空气压缩引火仪、点火爆炸,再加上教师们列举的不同实例或者采用的实验,素材非常丰富.但是笔者在教学、听课过程中,发现有些实验存在一定的理解误区,为了提出改进建议,有必要深入讨沦. Mechanical energy and internal energy conversion experiments are many Suko version of the textbook experiments are bent wire lead, air compression firearms, ignition explosion, together with the teachers cited different examples or experiments used, the material is very rich, but the author at During the teaching and lecturing, we found that some experiments have misunderstandings. In order to put forward suggestions for improvement, it is necessary to deepen discussion.