圆周运动既是教学的重点,学生学习的难点.又是历年高考的热点.圆周运动作为基础性的知识,往往与其他内容密切相连的,所以与圆周运动相结合的问题类型较多,现分类介绍如下. Circular movement is not only the focus of teaching, the difficulty of student learning, but also the hot spot of college entrance examination over the years.Physical movement as a basic knowledge, often with other content is closely linked, so combined with the circular movement more types of problems are introduced as follows.