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同学们在解浮力问题时,若用常规解法,会遇到比较繁难的公式推论、数学运算,而使解题思维受阻。此时,若能通过寻找前后漂浮、沉浮状态的体积比建立关系,则可使问题得以简化。因为F浮前=ρ液gV排前F浮后=ρ液gV排后显然,在同一液体中浮力的变化与浸入液体的体积变化成正比,下面举
When students solve the buoyancy problem, if they use conventional solutions, they will encounter more complicated formula inferences and mathematical operations, which will make the problem-solving thinking hindered. At this point, the problem can be simplified if the relationship can be established by finding the volume ratio between the floating state and the floating state before and after. Because F float before = ρ liquid gV before row F float = ρ liquid after gV row obviously, the change of buoyancy in the same liquid is proportional to the volume change of immersed liquid, the following