学生自主探究实验的发现是无穷的,兴趣小组内的同学通过实验探究发现了几个应用密度知识进行间接测量的小实验.密度知识是初中物理学中比较难于掌握的一部分内容,也是一个重点知识.密度知识在间接测量中也有重要作用.它为我们进行测量开拓了新的途径.例如,根据密度知识用天平不但可以直接测物体的质量,还可以间接“测得”体积、面积或长度;用刻度尺、量筒或量杯不但可以直接测量长度、面积或体积,也可以间接“称”物体的质量.下面就着重探究几个小实验,看看怎样借助 The discovery of students’ independent inquiry experiments is endless. The students in the interest group discovered several small experiments using density knowledge to conduct indirect measurements through experimental exploration. Density knowledge is a part of junior middle school physics that is more difficult to grasp, and it is also a key knowledge. Density knowledge also plays an important role in indirect measurement. It opens up new ways for us to measure. For example, according to the density knowledge, the balance can not only measure the quality of the object directly, but also can indirectly measure the volume or area. Length; with a scale, graduated cylinder or measuring cup can not only directly measure the length, area or volume, but also indirectly “ said” the quality of the object. The following focus on a few small experiments to see how to use