论文部分内容阅读
初中物理浮力这一章虽然章节篇幅不多,但上下关联的知识点较多,与液体压强知识、密度知识、力的分析、二力平衡甚至于简单机械和功有着密切联系,所涉及到的题目综合性较强,因此在各省市的中考题里经常以压轴题出现,要解决好浮力的问题,首先要切实理解掌握阿基米德原理和物体的浮沉条件,注意下面求解浮力四种方法:
Although there is not much space in this chapter, the chapter on physical buoyancy in junior high school has many knowledge points linked up and down. It is closely related to the knowledge of liquid pressure, the knowledge of density, the analysis of force, the balance of two forces and even the simple mechanics and power. Topic comprehensive strong, so in the provinces and cities in the test questions often appear to pressure axis problem, to solve the problem of buoyancy, we must first of all practical understanding of the Archimedes principle and object floating conditions, pay attention to the following buoyancy solution of the four methods :