浮力计算题历来是各种考试考查的重点。为了帮助同学们做好这方面的复习,本文结合历年的中考题就此问题进行归类。 由于初中阶段只研究浸在一种液体(气体)中的物体所受到的浮力,且主要解决静态浮力,即漂浮与悬浮,因此,解题时,必须明确所研究的对象,先对其进行受力分析,然后根据物体浮沉条件和阿基米德定律来解决。 The buoyancy calculations are the focus of various examinations. In order to help the students to do a review in this area, this paper combines the questions in the previous year to classify this issue. Since the junior high school only studies the buoyancy of objects immersed in a liquid (gas), and mainly solves the static buoyancy, that is, floating and levitation, when solving a problem, it is necessary to specify the object under study and to subject it to The force analysis is then solved according to the object sinking condition and Archimedes’ law.