Q:

What is wind speed?

A:

Quick Answer

Wind speed is the rate or movement of air flow as it travels from high to low pressure, in relation to the Earth. Warm air rises because it weighs less than cold air, and the cold air then moves in and replaces the warm air.

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Full Answer

Wind speed is important because it affects aircraft, ships at sea, weather forecasts and construction projects. Wind speed can be affected by buildings, trees and other types of obstacles. There are many different types of wind patterns, such as monsoons, downbursts, derechos, gusts and jet streams. Wind direction also affects how cold or warm weather patterns are.

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Related Questions

  • Q:

    What is the force that generates wind?

    A:

    Wind is caused by differences in air pressure in different areas. This air pressure variance is a direct result of uneven heat distribution across the Earth's surface.

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  • Q:

    What causes wind to blow?

    A:

    Wind blows due to air-pressure gradients that are the result of the uneven heating of the Earth's atmosphere. Prevailing winds blow in a consistent direction over large areas of the Earth's surface, while local winds are dependent upon regional geography.

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    How is wind energy created?

    A:

    Wind energy is created when moving air causes a wind turbine to rotate, powering a motor that generates electricity. The energy of the wind itself derives from differential heating of the air by the sun and the rotation of the Earth, combined with landscape features which shape the air flow. In this way, wind power is an indirect form of solar power.

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  • Q:

    What is the relationship between air pressure and wind direction?

    A:

    Wind is created by changes in air pressure from one area to another. Changes in air pressure are determined by a variety of forces, including the density and temperature of air masses. When air moves from between areas of high pressure and low pressure, wind directions and speeds may change.

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