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高中物理(甲种本)第一册中的学生实验一,要求学生根据课本所给出的实验数据,研究水从容器底部的排水孔流出时,对一定深度的水来说,排尽水的时间T与孔径d的关系。这对帮助学生熟悉物理学研究问题的方法,提高学生分析问题和解决问题的能力,无疑是大有裨益的。实验结论是:T_(∝ 1/d~2).这仅仅是比例式。本文将对这个结论从理论上进行推导,得出比较精确的表达式,以供参考。
In the first experiment of high school physics (a type of textbook), students are required to test the water from the drainage hole at the bottom of the container according to the experimental data given in the textbook, and drain the water for a certain depth of water. The relationship between time T and aperture d. This is a great way to help students become familiar with physics research problems and improve their ability to analyze problems and solve problems. The experimental conclusion is: T_(∝ 1/d~2). This is only a ratio formula. This article will theoretically deduced this conclusion and obtained a more accurate expression for reference.