摘要
敲击装水的杯子时音调会发生变化,装水量的多少与音调变化之间的关系已有说明和讨论,但是在对其原因的分析却存在分歧.本文利用虚拟仪器,通过一系列实验,应用具体数据进行了定性分析.实验表明敲击杯口和杯壁,音调变化不同;敲击杯壁不同位置,音调不变.笔者发现从实证的角度得出的结论与以往观点不能完全吻合,从而尝试从杯子的横向、纵向振动、液体的黏滞性对杯子振动的影响等方面来进行解释.
The tone of the watered glass will change when the glass is struck. Many researches have been done about the relationship between the water＇s quantity and the tone＇s change. However, there are many different opinions on the reason. The qualitative analysis has been done through a series of experiments using virtual apparatus. The experiment shows the tone will change when the glass is struck on the brim and on the side. The tone will keep the same when the glass is struck on the different side. There are many differences between the experience conclusion and the others opinions. This paper tries to explain the effect of level vibration, vertical vibration and the liquid viscosity on the glass vibration.
出处
《物理实验》
2006年第5期29-31,共3页
Physics Experimentation
基金
安徽师范大学教学研究项目基金(No.XJJYB200601)
作者简介
莫滨（1970-）．男，江苏南京人，安徽师范大学物理与电信学院2003级教育硕士研究生．中学一级教师，主要从事物理教学论研究．
