论文部分内容阅读
高中物理教材中描出平抛运动轨迹采用的实验方法非常繁琐,要进行多次抛掷,并反复进行探点,才能确定出轨迹上一系列位点,连点而成轨迹,实验耗时也较长,效率不高,在教学实践中,我用儿童画写板(靠磁性笔尖划过时将铁粉吸至上层而显示出痕迹的儿童文具)改装的“平抛运动描迹仪”进行实验,可一次描迹成功,下面介绍给广大物理教师,以供参考。
The experimental method used to describe the flat-throw motion trajectory in high school physics textbooks is very tedious. Tossing is repeated several times, and exploration points are repeatedly performed to determine a series of loci on the trajectory. The efficiency is not high. In the teaching practice, I experimented with the “flat throw motion tracer” modified by the children’s drawing board (children’s stationery with the iron pen tipped to the upper layer and traced by the magnetic pen tip). A trace of success, the following describes to the majority of physics teachers for reference.