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“滑块-木板”模型是中学物理中动力学的综合问题,是高考热点、难点,是对学生综合能力的考查,是新课程标准能力要求必须掌握的问题.用假设、极限逼近法解决此类问题是行之有效的.1“滑块-木板”模型特点滑块在木板上表面运动,构成“滑块-木板”模型.此类模型的特点是:滑块与木板之间可能存在摩擦力作用,二者的加速度可能相同也可能不同,运动性质可能相同也可能不同.“滑块-木板”模型问题中,一般分为2个阶段:第
The model of “slider - wood board” is the comprehensive problem of physics in middle school physics, it is the hot and difficult point of entrance exam, it is the examination of comprehensive ability of students, it is the problem which must be grasped by the requirement of new curriculum standard ability. It works well to solve such problems.1 “Slider - Board ” Model Features The slider slides on the upper surface of the board to create a “Slider - Board” model. The characteristics of such models are: Slider and There may be friction between the boards, the acceleration of the two may be the same or different, the nature of the movement may be the same or may be different. “Slider - wood” model problem, generally divided into two stages: the first