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“漂浮”与“悬浮”是初中浮力问题教学中的一个难点。很多学生对此两概念的理解和应用总易混淆。在教学实践中我发现,从这两概念的异同点讲授,学生易于接受。对同一物体而处于不同液体里而言:一、“漂浮”与“悬浮”的不同点。1.从物体排开液体的体积比较。物体的体积 V_物等于其处于悬浮状态时排开液体的体积 V_(悬浮),且大于其处于漂浮状态时排开液体的体
“Floating” and “floating” is a difficulty in the teaching of buoyancy in junior high schools. Many students are always confused about the understanding and application of the two concepts. In teaching practice, I discovered that students are easy to accept from the similarities and differences of the two concepts. For different objects in the same liquid: First, the difference between “floating” and “floating”. 1. Compare the volume of liquid discharged from the object. The volume of the object V_ is equal to the volume V_(float) of the liquid that is displaced when it is in suspension, and is greater than the volume of the liquid that is displaced when it is in the floating state.