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在初中阶段,有关浮体的计算是重点也是一个难点,学生常常感觉非常困惑,我觉得在有关浮体的计算中,如果把浮体法和阿基米德原理相结合,可使有关浮体的计算简单化。浮体包括漂浮和悬浮的物体。漂浮是物体在液面上的平衡状态,而悬浮则是物体在液体中的平衡状态。它们所受浮力与自身重力相等即F浮=G物(浮体法)。阿基米德原理:一切浸入液体的物体,都要受到液体对它竖直向上的浮力,浮力的大小等于它排开的液体受到的重力,F浮=G排。对于浮体,把浮体法和阿基米德原理相结合有:
At the junior secondary stage, it is difficult and difficult for students to calculate the floating body. Students often find it very confusing. I think that in calculating the floating body, if we combine the floating body method with the Archimedian principle, the calculation of the floating body can be simplified . Floats include objects that float and float. Floating is the equilibrium state of the object on the surface, while the suspension is the equilibrium state of the object in the liquid. They are subject to buoyancy and their own equal force that F floating = G material (float method). Archimedes principle: All the objects immersed in liquid, are subject to the vertical upward buoyancy of the liquid, the size of the buoyancy is equal to the liquid gravity it is gravitational, F float = G row. For buoys, the float and Archimedes principles are combined: