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在人教版普通高中课程标准实验教科书《物理1》第二章“自由落体运动”一节中,教材推荐使用打点计时器来研究自由落体运动的规律。但在实际教学过程中,笔者发现这个实验并不适合作为课堂演示实验来展示,主要存在以下三个问题:(1)纸带上的点迹,小而密集,作为课堂演示实验,可视度低;(2)纸带上的起始点通常很难满足自由落体运动
In the section of the People’s Education High School Curriculum Standards Test Text Book “Physics 1” Chapter 2 “Free fall motion”, the teaching materials recommend the use of a tick timer to study the law of free fall motion. However, in the actual teaching process, the author found that this experiment is not suitable for demonstration as a classroom demonstration experiment. There are mainly the following three problems: (1) The dots on the tape, small and dense, as classroom demonstration experiments, visibility Low; (2) The starting point on the tape is usually difficult to meet the free-fall motion