论文部分内容阅读
初中物理第一册《浮力》一节,论述浮力产生原因,没有演示仪器,是假设浸没在水中的正方体模型理论分析后得出“水对物体向上向下压力差就是水对物体的浮力”结论,这个“差”涉及物体上下受到两个压
The first volume of the junior high school physics book “Buoyancy” discusses the causes of buoyancy. There is no demonstration instrument. It is assumed that the theoretical model analysis of a cube model submerged in water gives a “water-to-object pressure difference is the buoyancy of a water object.” “Conclusion, this ”poor" involves two pressures above and below the object