浮力是流体对受其包围的物体的竖直向上的合力,虽然是流体作用的结果,但流体对物体作用的合力并不都是浮力。在浮力的教学中,应该特别注重对浮力本质的透彻理解,本文对初中浮力的几种类型题进行分析,相信可以帮助学生进一步学好浮力,对掌握有关浮力、压强、密度等问题的思维方法,有着十分重要的作用。一、浮力的平衡性例1.用弹簧测力计拉住一个重为43N的空心铜球,全部浸在 Buoyancy is the fluid’s upward vertical force on the object it encloses, and although it is the result of the fluid’s action, the resultant force of the fluid acting on the object is not all buoyancy. In the teaching of buoyancy, special attention should be paid to the thorough understanding of the nature of buoyancy. Based on the analysis of several types of problems in buoyancy of junior high school, I believe it can help students to further learn buoyancy. To master the thinking methods of buoyancy, pressure and density, Has a very important role. First, the balance of buoyancy Example 1 with a spring force gauge pulled a weight of 43N hollow copper ball, all immersed in