I know that wind is air and that it makes storms and tornadoes, but what is it that makes it blow and why do we need it?
2007-01-16 07:04:01 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Weather
Excellent question.The wind is the result of three forces acting on a given parcel of air - pressure differences move the air to begin with, and once the air begins to move it is affected by friction if it is near the earth's surface and the coriolis force which accelerates the air to the right in the northern hemisphere and to the left of the direction of flow in the southern hemisphere. The initial pressure differences which begin the process of air flow are caused by differential heating of the earth's surface.
Wind is needed so that equatorial parts of the globe will not continue to heat while polar regions continue to cool. The wind maintains a balance between the two.
2007-01-16 08:00:19 · answer #1 · answered by 1ofSelby's 6 · 0⤊ 0⤋
The wind blows due to air pressure differences air travels from a high pressure to a lower pressure. Like when you see the H and a L on the weather map. When need wind for various reasons such as without wind trees would not stand up they would lay down on the ground. Wind also moves weather systems around everything from a spring shower to hurricanes. Wind can also generate electricity to power your home.
2007-01-16 07:12:29 · answer #2 · answered by mortonrma 1 · 0⤊ 0⤋
Wind is the flow of air, and air flows for a variety of reasons. Usually it's a pressure differential. If the pressure is lower at point A and higher at point B, the air will flow from B to A. Different temps create different air mass pressures, so does the amount of moisture, heating from the sun, cooling from the clouds. In the summer the air heats up over the land quicker than over the ocean. So the air rises over land and the air rushes in from the ocean, creating an onshore sea breeze. Lots of things create differences in pressure.
2007-01-16 07:11:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The actual thing that makes the wind is Temperature difference
this temperature difference makes density differences and that makes the movement.
2007-01-16 07:15:11 · answer #4 · answered by Armin G 1 · 0⤊ 0⤋
Hi. Air travels around pressure zones in the atmosphere, clockwise if the zone is high pressure, counter-clockwise if low. Air carries energy from one place to the other to equalize (or try to equalize) conditions in the atmosphere.
2007-01-16 07:09:54 · answer #5 · answered by Cirric 7 · 1⤊ 0⤋
No, the wind makes branches move...
2016-05-25 01:59:49 · answer #6 · answered by ? 4 · 0⤊ 0⤋