Atmospheric pressure:

Question

BlackTom AI · Accepted Answer

Atmospheric pressure and its behavior with altitude is the central theme here, so let’s parse each choice in turn.
Option 1: 'Always decreases with height.' This aligns with the general understanding of the atmosphere: as you go higher, the weight of the air above you diminishes, leading to lower pressure. In most standard contexts, this is the baseline expectation.
Option 2: 'Decreases with height up until the altitude that planes typically fly, then increases with height.' In reality, there isn’t a known layer in which pressure begins to rise again with increasing altitude under standard atmospheric conditions. The hydrostatic balance and gravity ensure pressure continues to fall with height; an increase would require an unusual mass distribution or dynamic forcing not present in ordinary atmospheric layers, making this option inaccurate.
Option 3: 'Always increases with height.' This contradicts the fundamental hydrostatic principle: more air above at lower altitudes creates higher pressure, while at higher altitudes there is less overlying air, so pressure decreases, not increases. Therefore this option is misleading.
Option 4: 'Increases with height, except where there is a pressure inversion.' The term pressure inversion is not used to describe a situation where ambient pressure increases with altitude; inversions refer more to temperature and density profiles. Pressure itself does not exhibit a systematic rise with height in normal atmospheric structure, so this statement is not correct.
Thus, evaluating the statements collectively: the only option that correctly captures the typical vertical trend of atmospheric pressure without introducing unsupported exceptions is that pressure decreases with height throughout the atmosphere.

Math & Science Prep Program Placement Assessment

Atmospheric pressure:

查看解析

登录即可查看完整答案

类似问题

There are two round tables in the physics classroom: one with the radius of 50 cm the other with a radius of 150 cm. What is the relationship between the two forces applied on the tabletops by the atmospheric pressure?

The arrows indicate that air flows ____ low pressure

Since there is more air above you at sea level than there would be in a city like Denver, sea level air pressures are generally ____ than station-measured air pressures.

Sea level pressure is the weight of the entire column of the atmosphere from sea level to the top of the atmosphere for a unit area, which is equal to the weight of a column of mercury with the height of approximately

Sea level pressure is the weight of the entire column of the atmosphere from sea level to the top of the atmosphere for a unit area, which is equal to the weight of a column of mercury with the height of approximately

The core component of a pressure altimeter is an aneroid cell that is only capable of sensing changes in ____________.

How does the atmospheric pressure at altitudes below sea level compare with atmospheric pressure at sea level?

What instrument is normally used to measure atmospheric pressure?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单