演示实验在物理教学中占有极其重要的地位,教师进行演示时,不仅要保证演示的成功。还应精心设计演示的方法,使演示产生最佳效果。许多有经验的教师都主张精心设计演示的方法,把它当作巩固知识、发展兴趣、培养能力,开发智力的必要手段。而一些好的演示设计,除了直观性、趣味性、探 Demonstration experiment occupies an extremely important position in physics teaching. When teachers demonstrate, they must not only ensure the success of the demonstration. The presentation method should also be carefully designed to give the best results. Many experienced teachers advocate the meticulous design of demonstration methods as a necessary means to consolidate knowledge, develop interests, develop abilities, and develop intelligence. And some good demo designs, in addition to intuitive, interesting, exploration