“平抛运动实验器”的改进

• 作 者: 封其敬
• 机 构: 南京市六合实验高级中学,
• 出 处: 高考
• 发表日期: 2017年15期
• 关键词: 平抛运动 坐标纸 时可 描点 滑槽 竖直线 点迹 打点计时器 斜槽 压点

一、J2154型平抛运动实验器在做“研究平抛物体的运动”这个高一物理学生分组实验时,大多学校使用的都是J2154型平抛运动实验器,如图1所示;实验时可通过小球落入槽内时挤压复写纸,把点记录在复写纸下面的白纸上,然后再用铅笔把该点描在带有坐标轴的白纸上(下面就称作坐标纸),如图2所示;此实验优越于以往的实验方案,使描点难度有所降低,但它同时又

First, J2154-type flat throwing motion test device doing “study flat-throwing object movement ” This high a physical student grouping experiment, most of the schools are using J2154-type flat thrown sports experiment, as shown in Figure 1; Experiment can be squeezed by the ball into the slot when the carbon paper, the dots recorded in the carbon paper below the white paper, and then use pencil to the point of the paper with the coordinates of the white paper (hereinafter referred to as the coordinate paper) , As shown in Figure 2; this experiment is superior to the previous experimental scheme, making the difficulty of tracing reduced, but at the same time it