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过去高中物理教材中研究平抛物体运动的实验,是在小球做平抛运动时,用铅笔去碰运动中的球的方法找出轨迹点.目前高中物理教材采用了有孔卡片漏球的方法找出轨迹点.我们认为以上两种方法都有不少缺点,今另设计了一个平抛实验仪,介绍如下. 实验的器材与结构平抛实验仪如图1所示 1.铁支架:采用带有垂直度调节螺钉A、B,高约50cm左右的铁支架(铁支架竖直杆上最好有刻度,也可只刻一竖直线).
In the previous high school physics textbooks, the experiment of studying the motion of flat objects was to find out the trajectory points by using a pencil to touch the balls in the sports when the ball was doing flat throws. At present, the high school physics textbook uses a holed card to leak the ball. Methods Find out the trajectory points. We think that there are many shortcomings in the above two methods. In the meantime, we have designed a flat-throw experimental instrument and introduced it as follows. The experimental equipment and structure flat-throw experimental instrument are shown in Fig. 1. 1. Iron supports: Using iron with verticality adjustment screws A, B, about 50cm high iron bracket (iron bracket vertical rod best scale, but also only a vertical line engraving).