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液体比重计分轻液比重计和重液比重计,它们的刻度线排列都是不均匀的(刻度线随液体比重值的均匀变化作不均匀排列)且比重值越小,刻度线的排列越疏。图1和图2分别为轻液比重计和重液比重计刻度线的排列示意图。这种非线性排列的原因何在?这种非线性排列的规律是什么?本文试图就物理教学83年第4期问题选答中有关两个问题作一些讨论。
The liquid pycnometer is divided into the light hydrometer and the heavy hydrometer, and their scale lines are not uniform (the scale line is unevenly arranged with the uniform change of the specific gravity value of the liquid). The smaller the specific gravity value is, the more the scale line is arranged. sparse. Figure 1 and Figure 2 are schematic diagrams of the alignment of the light hydrometer and the heavy hydrometer. What is the reason for this non-linear arrangement? What is the law of this kind of non-linear arrangement? This article attempts to make some discussion on two issues in the answer to the fourth issue of physics teaching.