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多年来,“验证动量守恒定律”实验一直沿用如图1所示的实验装置.人民教育出版社2003年6月第一版“全日制高级中学教科书《物理》第二册(必修加选修)”将该实验装置改装为如图2所示.贵刊2005年第4期登载了张钊老师的“‘验证动量守恒定律’实验改装值得商榷”一文,作者认为实验改装值得商榷.果真值得商榷吗?笔者认为首先要弄清对实验装置改装的必要性,即沿用已久的如图1所示的实验装置为什么要改装?
Over the years, “the law of conservation of momentum” experiment has been using the experimental device shown in Figure 1. People’s Education Press, June 2003 first edition “full-time high school textbook” Physics “Volume II (compulsory plus Elective) ”The experimental device is modified as shown in Figure 2. Your issue No. 4, 2005 published Zhang Zhao teacher “ ”proof of the law of conservation of momentum “ experimental modification worth discussing ”, the author believes that the experimental conversion worthwhile Do you really questionable? I think we must first understand the necessity of retrofitting the experimental device, which has long been the experimental device shown in Figure 1 Why should be modified?