07.7.机械能守恒定律的应用（Application of conservation law of mechanical energy of 07.7.）.docVIP

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07.7.机械能守恒定律的应用（Application of conservation law of mechanical energy of 07.7.）.doc

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07.7.机械能守恒定律的应用（Application of conservation law of mechanical energy of 07.7.）

07.7.机械能守恒定律的应用（Application of conservation law of mechanical energy of 07.7.） The application of conservation law of mechanical energy I. teaching objectives 1. requirements for physical knowledge (1) grasp the conditions of conservation of mechanical energy; (2) understand the physical meaning of the law of conservation of mechanical energy 2., make clear the advantages of using the law of conservation of mechanical energy to deal with problems, and pay attention to train students to use the law to solve problems, so as to train students habit of correctly analyzing physical problems 3. the education of the methods of physics that emphasizes the importance of dealing with problems by means of energy transformation and conservation Two, key and difficult analysis 1. the law of conservation of mechanical energy is an important law in mechanical knowledge. It is a key knowledge, especially the applicable condition, physical meaning and specific application of law as a higher requirement The applicable conditions of the law of conservation of mechanical energy of the 2. understanding and application, for most students, although after a period of learning, will often hold enough, every kind of error. It also shows that this is the difficulty of teaching. Three, teaching aids Some slides, slide projection, crayons, string, ball, rod, with two balls of the fixed pulley block, m, M, string. Four 、 teaching process design (1) review and introduce new courses 1. ask questions (videos) (1) the content of the law of conservation of mechanical energy (2) the condition of conservation of mechanical energy 2. according to the students answer, carries on the appraisal and the induction summary, explains (1) the mechanical energy conservation law physical meaning (2) using the law of conservation of mechanical energy to analyze and solve the basic ideas and methods of physical problems (two) teaching process design 1. examples and their analysis 1 slides and experimental demonstra