一种平抛运动瞬时速度方向确定装置

发布时间：2018-01-19 01:15

本文关键词： 速度方轨道标尺基板滑动杆激光点光源撞击点瞬时速度　出处：《中国新技术新产品》2016年24期 　论文类型：期刊论文

【摘要】：本实用新型涉及一种平抛运动瞬时速度方向确定装置,在轨道最末端右侧的基板上水平安装一标尺,该标尺上方的基板上水平安装一滑动杆,该滑动杆上套装两个滑块,所述竖直激光点光源用于移动到接球板阻挡金属球时在白纸上形成的撞击点正上方后向撞击点投射竖直方向的激光,所述万向激光点光源用于移动到竖直激光点光源与轨道最末端之间水平距离的中点时向所述撞击点投射倾斜方向的激光,该倾斜方向的激光即为所述撞击点瞬时速度的方向。本实用新型中,学生可以得到抛物线上不同的撞击点,从而通过倾斜的激光观察到每个撞击点的瞬时速度方向,非常的直观和方便,即增加了学生的动手能力,还加深了对于平抛运动公式的理解。
[Abstract]:The utility model relates to a device for determining the instantaneous velocity direction of flat-throwing motion. A ruler is installed horizontally on the base plate on the right side of the track at the end of the track, and a sliding rod is installed horizontally on the substrate above the ruler. The sliding rod is fitted with two sliding blocks, and the vertical laser spot light source is used for projecting a laser in the vertical direction to the impact point directly above the white paper when moving to the ball plate to block the metal ball. The universal laser point light source is used for projecting a laser tilting direction to the impact point when moving to the middle point of the horizontal distance between the vertical laser point light source and the most end of the track. The laser in the inclined direction is the direction of the instantaneous velocity of the impact point.; in the utility model, students can obtain different impact points on the parabola. Thus, the instantaneous velocity direction of each impact point can be observed by inclined laser, which is very intuitive and convenient, that is to say, it increases the students' practical ability and deepens the understanding of the formula of flat throwing motion.
【作者单位】：深圳科学高中;
【分类号】：G634.7
【正文快照】： 一、技术领域本实用新型涉及物理教学教具设备领域,尤其是一种平抛运动瞬时速度方向确定装置。背景技术物体以一定的初速度沿水平方向抛出,如果物体仅受重力作用,这样的运动叫做平抛运动,其可看作是水平方向上的匀速直线运动以及竖直方向的自由落体运动的合运动,运动过程中受

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