物理学是研究物质运动和物质基本结构的科学,研究对象小到微观粒子大到宏观天体,研究方法有观察、实验、推导、演绎等.由于受中学生认知水平、学时等条件限制,中学物理课本的遣词造句在许多地方是高度概括的.如:有关简谐运动,教材首先介绍了弹簧振子,定义了什么叫简谐运动,接着介绍了单摆,直接给出了单摆的周期公式;再如:有关开普勒三定律,有些教材只在介绍万有引力定律时提及.学生对这些知识缺乏系统的了解,教师在辅导它们参加各类竞赛时,就必须把这些知识点的来龙去脉交待清楚,多编一些联系实际的跟踪习 Physics is the science that studies the movement of matter and the basic structure of matter. Research objects range from microscopic particles to macroscopic objects. Research methods include observation, experimentation, derivation, and deduction. Secondary schools are affected by the conditions of middle school students’ cognitive level and academic hours. Textbook sentences are highly summarized in many places. For example, with regard to simple harmonic motions, textbooks first introduce spring oscillators and define what is called simple harmonic motion. Then a single pendulum is introduced, and the periodic formula of single pendulum is given directly. Another example: With respect to Kepler’s three laws, some teaching materials are only mentioned when introducing the law of universal gravitation. Students lack a systematic understanding of these knowledge. When teachers are coaching them to participate in various competitions, they must clearly explain the ins and outs of these knowledge points. , more than some of the actual tracking tracking