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在《大气压强》一节的学习中,我们已经了解到,证明大气压存在和测量大气压值的演示实验的器材选取方便,操作简单易行。但对于大气压随高度的变化,由于我们在日常生活中观察、体验得少,没有感性的认识,演示实验又不容易操作,而且可见度差。所以我从实验室中选取材料,自制了一个验证大气压随高度变化规律的实验装置,如果经过改进,还可以成为粗略测量高
In the study of “Atmospheric pressure”, we have learned that the equipment for demonstrating the presence of atmospheric pressure and the atmospheric pressure measurement experiment is easy to select and operate. But for the changes of atmospheric pressure with height, because we observe in our daily life, experience less, there is no perceptual knowledge, demonstration experiments are not easy to operate, and the visibility is poor. So I chose the material from the lab and made a home-made experimental setup that validated the variation of atmospheric pressure with height, which could be a rough measure if it was refined