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在物理教学中,反例分析的内容涉及力学、光学、热学等领域.在物理教学中,让学生掌握严密的逻辑推理与思维特点的同时,还掌握各类反例,就会更深刻掌握基础知识,提高物理修养与培养科学研究能力.一、光学中的反例分析凸透镜一定会聚,凹透镜一定发散吗?凸透镜与凹透镜及它们的性质,成像等是中学光学里比较重要的内容,在日常生活中也会常常接触到它们.经常有人(包括不少参考书)会这样描述它们:凸透镜的作用是会聚光线,是会聚透镜;凹透镜的
In physics teaching, the content of counterexample analysis is in the fields of mechanics, optics and heat etc. In physics teaching, students should master various kinds of counterexamples while mastering close logical reasoning and thinking characteristics, Improve physical training and develop scientific research ability.One, the analysis of the counter-examples in optics Convex lenses must converge, concave lens must diverge? Convex and concave lenses and their nature, imaging and other secondary school optics is more important content in daily life will be Often come into contact with them. Often people (including many reference books) will describe them as follows: the role of the convex lens is to converge the light is converging lens; concave lens