人造地球卫星及其运行规律是大多数学生感兴趣的内容。但是规律中涉及的物理量较多 ,如卫星轨道半径 (ｒ)、卫星线速度(ｖ)、角速度 (ω)及运行周期 (Ｔ)……很容易混淆不清 ,所以靠死记硬背是难以掌握的 ,甚至产生厌学、畏学情绪。因此在教学中应注意把握本质、循序渐进 ,尽量 Man-made earth satellites and their operating laws are of interest to most students. But the law involves more physical quantities, such as satellite orbit radius (r), satellite linear velocity (v), angular velocity (ω) and operating cycle (T)... It is easy to confuse, so it is difficult to grasp by rote memorization. , and even produce tired of learning and learning. Therefore, we should pay attention to the essence and gradual progress in teaching.