压力、压强和浮力是初中物理力学部分的重要章节之一,也是历年来各省市命制中考力学压轴题的首选内容之一,而把液面变化跟压力、压强和浮力结合在一起,则更是近年来中考物理的热点题型.这类题目往往综合性强、涉及面广,既考查了学生对所涉及知识点掌握的程度,又要求学生有较强的分析判断和综合应用能力,有较高的区分度,有利于人才的选拔和分流.下面仅以2001年的三道中考题为例,对这 Pressure, pressure, and buoyancy are one of the important chapters in the physics-mechanics section of junior middle school. It is also one of the first choices for the mechanics of life examinations in various provinces and cities over the years. Combining fluid changes with pressure, pressure, and buoyancy, it is even more important. In recent years, the topic of high school entrance examination physics questions. These topics are often comprehensive, involve a wide range, not only examine the students of the level of knowledge involved, but also require students to have a strong analysis and judgment and comprehensive application capabilities, A higher degree of discrimination is conducive to the selection and diversion of talents. The following is only taking the three-track exam in 2001 as an example.