万有引力定律在天文学上的应用人造卫星·教案 - 学科（The application of the law of gravity in Astronomy - satellite, teaching plan - discipline）.docVIP

万有引力定律在天文学上的应用人造卫星·教案 - 学科（The application of the law of gravity in Astronomy - satellite, teaching plan - discipline） I carefully collated documents, documents from the network I only collect and sort out In case of error Please check it yourself! Artificial satellite cosmic speed I. teaching objectives 1. the study of the motion of planets around stars and the motion of satellites around planets Let students master the basic method of studying such problems: gravity as the centripetal force of objects to do circular motion 2. enable students to have a preliminary understanding of the launching, running, etc of man-made earth satellites Enable most students to build a more accurate picture in the mind Two, key and difficult analysis 1. the centripetal force of celestial motion is provided by gravity This thread of thought is the focus of this lesson 2. the first cosmic velocity is the minimum speed of satellite emission Is the maximum speed at which the satellite runs Their unity is the difficulty of this lesson Three, teaching aids: homemade synchronous satellite model Four, teaching process (1) introducing new courses 1. review questions: Whats the two train of thought for solving celestial bodies? Gravity is the centripetal force for its circular motion Writing on the blackboard: F Wan =F The object of gravity on the earths surface is approximately equal to gravity 2. question: when we watch live TV broadcasts, we always hear the announcer say, the audience in front of the TV, friends: we are relaying live television over the Pacific Ocean or the communications satellites over the India ocean. So how did the satellite launch? What is the relationship between the running speed of an artificial satellite and its orbital radius? In this lesson, well learn -- satellite cosmic speed Blackboard writing: artificial satellite cosmic speed (two) teaching process 1. the speed at which satellites travel What is the relationship between the running speed of an artificial sa