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圆周运动是物理学中常见的一种运动,涉及的知识点多,覆盖面宽(重力场、电场、磁场中均可以出现),综合性大,是高考命题的热点,大多以计算题的形式出现.而“绳球模型”是圆周运动中典型的一类模型.笔者在教学过程中遇到这样一道题目
Circular motion is a kind of common movement in physics. It involves many points of knowledge and has a wide coverage (all can appear in gravitational, electric and magnetic fields). Comprehensiveness is a hot topic in the college entrance examination, and most of them are in the form of calculation questions . And “rope ball model ” is a typical type of circular motion in the class I encountered in the teaching process such a topic