生活中稍稍留心一下 ,我们会发现随处可见一些没有使用过的或是用过废弃的一次性塑料杯。塑料瓶子不值钱 ,又轻又小 ,很不引人瞩目。笔者发现这被世人称之为“白色垃圾”之一的小小塑料杯子在物理教学和实验中 ,却是不可轻视的 ,其作用和价值很大。只要我们认真钻研 ,精心制作 Watching life a little, we will find that there are some disposable plastic cups that have not been used or used. Plastic bottles are not worth the money, they are light and small, and they are not eye-catching. The author finds out that the small plastic cups that the world calls “white trash” are not to be underestimated in physics teaching and experiments, and their role and value are very great. As long as we carefully study, carefully crafted