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在热学演示实验中采用如图所示的“N形玻璃管”配以有色液柱来显示有关热现象,其效果明显、制作简单。现分别介绍如下: 1 气体热膨胀的演示 教材中是将“Γ”形玻璃管里面注入一段红墨水的水柱来显示空气受热时体积的变化。此
In the thermal demonstration experiment, the “N-shaped glass tube” as shown in the figure was used to display the relevant thermal phenomenon with a colored liquid column. The effect was obvious and the production was simple. Now separately introduced as follows: 1 demonstration of gas thermal expansion Teaching materials is the “Γ”-shaped glass tube into a red column of ink to show the volume of air changes when heated. this