巧用电子秤测量浮力

Measuring buoyancy using electronic scale

根据力的相互性作用原理,经理论推理得到直接称出物体的重力大小、称物体受到液体的浮力大小的方法.运用电子秤的功能键,对阿基米德原理和影响浮力的因素等实验进行了探究,与使用弹簧测力计类探究浮力实验相比较,实验现象更明显,状态更稳定,步骤更简洁,数据读取更直接.

A method of directly weighing the gravity of an object and the buoyancy of the liquid on the object was proposed based on Newton third law of motion.Using the function keys of the electronic scale,the Archimedes principle and the factors affecting buoyancy were explored.Compared with the methods using spring dynamometers,the experimental phenomenon was more obvious,the state was more stable,the steps were more concise,and it was more convenient to read the data.