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培养学生用数学知识解物理问题的能力,是教学大纲规定的中学物理教学目的之一。经常进行这方面能力的训练,不仅可以向学生展示众多的解题途径,提高他们的解题技巧,同时也可以锻炼他们逻辑思维的能力。例:试证一个作匀加速直线运动的物体在某一段时间内的平均速度就等于这段时间中间时刻的即时速度。(统编教材高中物理课本上册第345页) 解一:一个作匀变速直线运动的物体,初速是V_0 ,经t秒后速度为V_t,则它在这段时间内的平均速度V是
The ability to develop students' ability to solve physics problems with mathematical knowledge is one of the objectives of the physics teaching for secondary schools stipulated in the syllabus. Regular training in this area can not only show students many ways to solve problems, improve their problem-solving skills, but also their ability to exercise their logical thinking. Example: A test for a uniform linear acceleration of the object in a period of time the average speed is equal to the instantaneous moment in the middle of this time. (Unified textbook of high school physics textbook on page 345) Solution A: a uniform linear motion for the variable speed object, the muzzle velocity is V_0, after t seconds after the speed of V_t, then it during this time the average speed V is