摘要
利用遥控电磁铁精确控制下落物体的初始条件,采用对称式牛顿管双管对比演示自由落体运动,实现了实验数据的智能化测量且屏幕即时显示测量数据.该装置可用于自由落体运动的演示,还可测量物体在空气中自由下落的加速度、所受阻力等物理量.该装置结构简单且可拆卸,具有组装快捷,操作方便等特点.
In this paper, the remote control electromagnet is used to control the initial condi-tions of falling objects precisely. The free falling motions contrastively with the double sym-metric Newton pipe is demonstrated, which realizes the intelligent measurement of experimen-tal data, and shows the measurement data on the screen instantly. This instrument can be used to demonstrate the free falling motion. The physical quantities such as acceleration and resistance of a free falling object in the air can be measured. The structure of our instrument is simple and easy to dismantle. So its installation and operation are easy.
出处
《物理与工程》
2013年第5期33-34,37,共3页
Physics and Engineering
基金
山东省教育科学"十二五"规划课题"分层次教学与大学生科学素质及创新能力培养的实践与研究"(2011GG106)
关键词
牛顿管
光电门
演示装置
Newton pipe
photoelectric gate
demonstrator
