对于涉及打点计时器的实验题中,有两类问题是经常考查的.一类是求解加速度,另一类是求解瞬时速度.它们来源于一个基本模型,但考查时往往有拓展.笔者目前所用的教科版教材《物理》必修1中,对“逐差法”有所淡化.因此,本文在归纳打点计时器的两类问题的同时,也有类 There are two types of questions that we often check in the experimental questions involving the RBI timer, one is to solve the acceleration and the other is to solve the instantaneous speed. They come from a basic model, Of the textbook “physics” compulsory 1, “” by the difference method "so desalination.Therefore, this article summarizes the two types of RBI timer, but also has the class