What is wind and air pressure?

Answer 1

Pressure is caused by random molecular movement (all directions) and wind is overall movement in one direction: from high to lower pressure.

This is what you do when whistling for instance.

Answer 2

Wind is the result of air moving from areas of high pressure to areas of low pressure. Differences in pressure create wind. Air wants to move from high pressure to low pressure in order to equalize (the pressure will naturally average out given ideal conditions).

Air pressure is a measure of how much "atmospheric mass" is present above a given location. For example, during high pressure, there is a more massive column of air overhead than during low pressure. This phenomenon can be visualized by thinking about being underwater. The deeper you go, the more pressure you feel because there is more water overhead pushing down on your body. Your body basically supports all of the water that is directly above you.

Air molecules are kept in the atmosphere due to the earth's gravity. Near sea level, air pressure is greatest. Air pressure decreases with an increase in elevation. The air molecules in the atmosphere are akin to water in the ocean. If you can imagine yourself being buried by the atmosphere, you will experience much more pressure at sea level because you are "deeper" underneath the top of the atmosphere. As you climb a mountain, air pressure will decrease because you are more shallow relative to the top of the atmosphere. Logically, this is the reason that there is less oxygen at higher elevations. In terms of experiencing pressure, being at sea level is kind of like being at the bottom of the ocean, and being on a mountain is more like being only a few feet underwater.

Answer 3

A Storm

[mec3usa] Wind is air movement, or movement of air molecules. Air pressure is the force applied by the air molecules on a surface per unit surface area. Air molecules do not sit still -- they move in a random direction. However, when you have more molecules on one side than the other side, a pressure differential builds up. The region which has more air molecules is said to have a higher pressure. Air molecules will like to move from a high pressure area to a lower one. An analogy will be putting a drop of black ink in a cup of clear water. The ink drop contains many more ink molecules than the water, so the ink molecules tend to move away from each other (diffuse). The result is diffusion. If you wait for a few more minutes, the whole cup of water turns black and you cannot see the difference between ink and water.

A storm cannot develop if the air pressure is the same everywhere (uniform), which is not possible. At any point in time, a low pressure develops because the sun heats up the earth where there is no cloud. A high pressure develops where the sun is not shinning and where the earth is cool. So pressure differential already exists. Air molecules move. Wind blows. When the differential is large enough and when there is moisture (the ocean water supplies the energy to the wind too), a storm usually forms. Over deserts, wind blows too, except that it is hot over such a large area that pressure differential is not as strong.

Answer 4

wind is the horizontal movement of air whereas air current is the vertical movement of air

Answer 5

I think that who ever asked this question is to concerned about stupid things and needs to go get a life :) jkjk but this is a really smart hard questiOn and I hope you get. Your answer