Air pressure is also known as atmospheric pressure. How is it caused?
By the heat energy in the air
By the wind that blows in the air
By water vapour in the air
By the air around us that presses on the surfaces of objects
A
By the heat energy in the air
B
By the wind that blows in the air
C
By water vapour in the air
D
By the air around us that presses on the surfaces of objects
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Solution
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The pressure exerted by air around us is known as atmospheric pressure.
If we imagine a unit area and a very long cylinder standing on it filled with air, then the weight of the air in this cylinder is the atmospheric pressure.
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