近几年有部分省市中考题出现了一种典型题“浮力中两体问题”--即一道题目中出现两个物体,对于浮力题本身难度就比较大,加上两个物体所以难度增加,笔者根据多年的教学经验总结了解决该问题的解决方法. 例1.(河北1997年33题)将塑料球和木球用细绳相连放入水中时,木球露出水面的体积为它自身体 In recent years, there have been some typical questions in the examination questions in some provinces and cities“two-body problems in buoyancy” -- that is, two objects appear in a problem. The buoyancy problem itself is relatively difficult, plus two objects. As the difficulty increases, the author summarizes the solution to this problem based on years of teaching experience. Example 1. (Hebei 1997, 33 questions) When the plastic ball and the wooden ball are connected to the water with a string, the volume of water exposed on the wooden ball is It itself