论文部分内容阅读
测密度,既是初中物理的重点知识,也是初中物理的难点知识,同时又是初中物理考察的重点。将测量固体物质密度方法进行了整理。
Density measurement is not only the key knowledge of junior high school physics, but also the difficult knowledge of junior middle school physics, but also the focus of junior high school physics investigation. The method of measuring the density of solid material has been organized.