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关于大气压强产生的原因,在现行的初、高中物理教材中有两种不同说法,这两种说法是否存在矛盾,效果是否一致呢?很有必要分析一番。一、初、高中教材中关于大气压成因的不同说法1.初中教材中关于大气压成因的说法实验证明空气具有质量。地面上1 m~3空气的质量约为1.29 kg,因为空气有质量,所以空气也受重力。包围地球的空气层延伸的高度约几千千米,我们把它叫作大气层。由于重力,上面的空气压下面的空气,紧靠地面的空气被压缩得最厉害。所以初中物理
As for the causes of atmospheric pressure, there are two different versions of the existing primary and secondary physics textbooks. Are there any contradictions between the two versions and the results are consistent? It is necessary to analyze this. First, the beginning of high school textbooks on the causes of atmospheric pressure on the different views 1. Junior high school textbooks on the causes of atmospheric pressure experiment proved that the air has the quality. The mass of 1 m ~ 3 air on the ground is about 1.29 kg, and because of the quality of the air, the air is also subject to gravity. The height of the air layer that surrounds the Earth stretches for thousands of kilometers and we call it the atmosphere. Due to gravity, the air above the air pressure, the air close to the ground is compressed the most powerful. So junior high school physics