【摘 要】
：
轻杆一端连着1个小球,绕着另一端在竖直平面上做圆周运动。当通过最高点时,轻杆到底是受到压力还是拉力呢?这是高中物理教学的一个难点,为了突破此难点,本人设计了1个在竖直
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轻杆一端连着1个小球,绕着另一端在竖直平面上做圆周运动。当通过最高点时,轻杆到底是受到压力还是拉力呢?这是高中物理教学的一个难点,为了突破此难点,本人设计了1个在竖直平面上圆周运动的压力与拉力演示仪。
A small ball is attached to one end of the light rod, and a circular motion is performed in the vertical plane around the other end. When passing through the highest point, is the light pole subjected to pressure or tension? This is a difficult point in high school physics teaching. In order to overcome this difficulty, I designed a pressure and tension demonstration instrument for circular motion in the vertical plane.
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