论文部分内容阅读
高中物理教学中,对弹簧弹力做功的具体计算与弹性势能公式E_p=1/2kx~2没做要求,很多教师还是会把这个公式介绍给学生,以理解弹性势能与形变量间的具体关系.高考中是不会用这个公式来计算的,而在今年的全国高考卷中就不约而同地出现了与这个公式有关的题,似乎是“超纲”了,但解决这些问题时并非是需要学习过或见过的,在具体物理情境中学生可以自行推理得出解答结果,以此检测学生的综合能力.
In high school physics teaching, the concrete calculation of the elastic spring force and the elastic potential energy formula E_p = 1 / 2kx ~ 2 do not make the request. Many teachers still introduce this formula to the students to understand the specific relationship between elastic potential energy and deformation. The college entrance examination will not use this formula to calculate, and in this year’s national college entrance examination voluntarily appeared in this formula with the question, seems to be “super-style ”, but not necessary to solve these problems Studied or seen, in specific physical situations in which students can infer the results of their own in order to test the students’ comprehensive ability.