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一、本月知识学习指要知道浮力产生的原因是由于浸在液体或气体中的物体受到液体或气体对它的向上和向下的压力差．当方形或上下均匀柱形物体的下表面紧贴容器底部没有液体进入，则该物体不受浮力．理解公式Ｆ浮＝ρ液ｇＶ排的物理意义．知道浮力的大小只与液体的密度和物...
1. Knowledge learning this month means knowing that the reason for buoyancy is that the object immersed in liquid or gas is subjected to a pressure difference between the liquid and gas up and down. When the bottom surface of a square or up and down uniform cylindrical object is close to the bottom of the container and no liquid enters, the object is not subject to buoyancy. Understand the physical meaning of Formula F float = liquid gV. Know the size of buoyancy only with liquid density and matter...