当下航天技术、人造地球卫星发展迅猛,从近几年高考考点分布情况可以看出,万有引力定律在天体运动中的应用是高考的热点。万有引力定律是力学中的一个相对独立的基本规律,又具有普遍性,研究物体受万有引力作用下的运动情况,它是牛顿第二定律在曲线运动中的综合应用。处理策略就是 The current aerospace technology, man-made earth satellites are developing rapidly, from the college entrance examination in recent years, the distribution of test sites can be seen that the law of gravity in the celestial movement is the hot college entrance examination. The law of universal gravitation is a relatively independent basic law in mechanics and universal. It studies the motion of objects subject to gravitation, and it is the comprehensive application of Newton’s second law in curve motion. Processing strategy is