在“浮力”一章中 ,阿基米德原理的公式表示形式是 :F浮 =G排 =ρ液 g V排 .在教学中 ,学生用这种形式的公式做作业 ,出错的很多 ,究其根源 ,是对阿基米德原理没有真正理解 .对此 ,笔者采用另一种表示形式 ,即 F浮 =G排 =ρ液V排 g,仅把 g和 V排 位置调换 ,易于加深学生对原理 In the “buoyancy” chapter, the formulaic representation of Archimedes’ principle is: F float = G row = ρ liquid g V row. In teaching, students use this form of formula to do homework, many mistakes, The root cause is that there is no real understanding of Archimedes’ principle. To this end, the author uses another form of representation: F float = G row = ρ liquid V row g, only transposing the positions of g and V rows, easy to deepen students Principle