论文部分内容阅读
图1,图2分别是现行高中物理人教版第一册第三章第三节“研究牛顿第二定律的实验装置”和“操作示意图”。1.实验成功的关键。要保证两小车同时运动,经过一段位移后两小车必须同时停止。2.实验操作的不足。在具体操作过程中,虽能保证两小车同时运动,但很难保证两小车同时停止。这是因为,通常实验所用夹子的夹口不能完好密合,造成夹子在夹绳
Fig. 1 and Fig. 2 are respectively the third chapter of the third chapter of the current high school physics teaching book 1. The key to successful experiments. To ensure that the two cars move at the same time, the two cars must stop at the same time after a period of displacement. 2. The lack of experimental operation. In the specific operation process, although it is possible to ensure that two carts move at the same time, it is difficult to ensure that both carts stop at the same time. This is because the jaws of the clips used in the experiment are not perfectly closed, causing the clip to be caught in the rope.