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每一届学生在学完“人造地球卫星”一节后,总有部分学生问:根据卫星运行速率V=(GM/r)～(1/(GM/r)),轨道半径越大,卫星速率越小,为什么使卫星的速度增加时,卫星却远离地球?这说明学生没有真正理解卫星的运行速率公式.作为物理教师,有必要对有兴趣和学有余力的学生把这方面的问题讲解清楚.
After each student has completed the section on “Artificial Earth Satellites”, some students have asked: According to the satellite operating speed V = (GM/r) ~ (1/(GM/r)), the greater the orbit radius, the satellite speed The smaller the satellites are, why the satellites are farther away from the earth when the speed of the satellites is increased. This shows that students do not really understand the formula of the operating speed of the satellites. As physics teachers, it is necessary for students who are interested and have sufficient ability to explain this problem clearly. .