一、原实验存在的不足“用圆锥摆粗略验证向心力表达式”实验是人教版高中《物理》必修2第五章《曲线运动》第7节《向心力》中的一个重要演示实验.教材利用如图1甲所示的装置来验证向心力表达式,笔者在进行实际操作时,发现原实 First, the lack of the original experiment “Cone rough to verify the centripetal force ” experiment Pok Pok Pok high school “Physics” compulsory 2 Chapter V “curve movement” section 7 “centripetal force” in an important demonstration experiment. Teaching materials such as the use of a device shown in Figure 1 to verify centripetal force expression, the author in the actual operation, found that the original