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近两年来,不同省份的高考物理试卷有较多题目涉及雨滴的问题,体现了物理与生活相结合的课程理念,给人耳目一新的感觉.其实雨滴的形成要比题目描绘的情况复杂得多,大概经历了如下几个阶段:蒸汽→云滴→雨滴,云滴以凝结增长和碰并增长两种方式变大而成为雨滴.分析云滴变成雨滴的物理过程,能很好地培养学生的物理建模能力,提高学生解决实际问题的素质.下面就对此进行分析,供同行们教学时参考.
In the past two years, there have been more questions in the physical examination papers of college entrance exams in different provinces concerning the issue of raindrops, which reflects the idea of combining physical and living courses and gives a fresh and refreshing impression. In fact, the formation of raindrops is much more complicated than that described in the title, Probably experienced the following stages: steam → cloud drops → raindrops, cloud droplets to coagulation growth and collision and growth of two ways to become larger raindrops. Analysis of cloud droplets into raindrops physical process can well train students Physics modeling ability to improve the quality of students to solve practical problems.The following analysis of this for teaching colleagues reference.