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压强与浮力是初中物理教学的难点,很多学生不理解浮力产生的原因。笔者引导学生对“浮不上来的蜡烛”展开研究,探明液体压强与浮力间的联系,帮助学生理解浮力产生的原因,提高他们的思维能力。
Pressure and buoyancy are the difficulties in junior high school physics teaching, and many students do not understand the causes of buoyancy. The author guides students to study the “floating candle” to find out the relationship between fluid pressure and buoyancy, helping students to understand the causes of buoyancy and improve their thinking ability.