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《直线运动》的基本规律是质点动力学的重要基础。教学实践表明,要使学生掌握和理解匀变速运动的基本规律,必须从“变速运动”的现象入手,抓住“加速度”的基本概念及其物理意义,通过观察、实验、运用,逐步掌握研究质点运动的基本方法,学会运用质点运动的基本规律,解决简单的运动学问题。一、从观察现象入手物理教学必须注重从现象到本质,这是人所共知的基本方法。这里所说的现象,不一定都是“自然”现象,而是“物理”现象。即是说,有的现象直接与教学描述的规律相吻合,这类现象比较直观;有的则不然,必须通过对“现象”的观察与分析,才能与所要研究的问
The basic law of Linear Motion is an important basis for particle dynamics. Teaching practice shows that if students are to master and understand the basic laws of uniform variable speed movement, they must start with the phenomenon of “variable speed movement” and grasp the basic concept of “acceleration” and its physical meaning through observation, experiment and application. Gradually master the basic methods of studying particle movements, learn to use the basic laws of particle motion, and solve simple kinematic problems. First, starting from the phenomenon of observation, physics teaching must focus on the phenomenon to the essence. This is the basic method known to all. The phenomena mentioned here may not always be the phenomenon of “nature,” but the phenomenon of “physics.” That is to say, some phenomena are directly consistent with the laws of instructional description. Such phenomena are more intuitive; while others are not, they must be observed and analyzed through “phenomenons” in order to be able to study and ask questions.