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人民教育出版社高中物理必修Ⅱ,关于曲线运动一章在讲到离心运动时定义为:做匀速圆周运动的物体,在合外力突然消失或者不足以提供圆周运动所需要的向心力的情况下,就做逐渐远离圆心的运动,叫离心运动。笔者根据多年的教学经历发现学生对此含糊不清,一知半解。圆周运动可归纳如下:1.当F合=F向时,物体做匀速圆周运动;2.当F合F向时,物体做向心运动。然而对于物体做离心或者向心运动,学生依然十分迷茫,具体
People’s Education Press senior high school physics compulsory Ⅱ, on the chapter of the curve motion Centrifugal movement is defined as: to do uniform circular motion of the object, together in the sudden disappearance of external force or insufficient to provide the necessary circular movement of the centripetal force case Do gradually away from the center of the movement, called eccentric exercise. According to many years of teaching experience, I found that students vague, I do not know. Circular motion can be summarized as follows: 1. When F = F, the object to do a uniform circular motion; 2. When the F F, the object to do Heart exercise. However, for objects doing centrifugal or centripetal movement, students are still very confused and specific