物理是一门以实验为基础的科学,所有的物理概念、规律的发现和确立都是在实验的基础之上建立起来的。物理实验是人类认识世界的一种重要活动,要学好物理必须重视实验,在初中物理课本中有演示实验、学生分组实验、每章都排有小实验,并且这些小实验普遍具有趣味性。利用小实验可以弥补物理课堂教学的不足,激发学生学习物理的兴趣,寓学于乐; Physics is an experiment-based science. All physical concepts and laws are discovered and established on the basis of experiments. Physics experiment is an important activity for mankind to understand the world. To study physics well, we must attach great importance to experiments. There are demonstrative experiments, student group experiments, and small experiments in each chapter in junior physics textbooks. These small experiments are generally interesting. The use of small experiments can make up for lack of physical classroom teaching, to stimulate students interest in learning physics, to learn from music;