“理论+实验”习题教学法,就是在物理习题教学中通过理论分析和实验验证,探索相结合,以达到启发学生理解和掌握物理解题方法、规律的一种教学方法.[例1]在一均匀杠杆支点的两侧,分别挂上大小不同的实心铜块,杠杆恰好在水平位置平衡,若将两铜块同时浸没在水中,这时杠杆将 The “Theory + Experiments” exercise method is a teaching method that combines theoretical analysis, experimental verification, and exploration in physics exercises to achieve a method of inspiring students to understand and grasp the methods and laws of object understanding. [Example 1] ] On both sides of a uniform lever fulcrum, separate solid copper blocks of different sizes, which are exactly in horizontal position. If the two copper blocks are immersed in water at the same time, the levers will