在许多涉及浮力变化的试题中,直接所问或所求的并非浮力的变化,而往往是由液面升降问题引入的。学生遇到这些问题往往是束手无策,一筹莫展。本文结合教学的经验,就浮力变化引起的液面变化问题进行简单的归类,并对如何解决这类问题作了一些讨论。 Of the many tests involving changes in buoyancy, changes that are not directly buoyed or buoyed are often introduced by the problem of surface lift. Students encounter these problems are often helpless, do nothing. Based on the teaching experience, this paper simply classifies the liquid level changes caused by buoyancy changes and makes some discussions on how to solve such problems.