Is air pressure affected by gravity? Why?

Answer 1

Yes. Because air has density, or mass.

Answer 2

Air density is affected by gravity because it has mass like everything else. The closer to the Earth (sea level) the more affect gravity has on the mass. The further from the Earth (say the top of Mt. Everest) the air is less dense due to the affect gravity has on it's mass. Gravity is what holds an atmosphere to a celestial body such as the Earth.

Answer 3

The equation for pressure is density*g*height. Gravity will affect g and the density. Density, because air is easily compressed, unlike water, and g because g affects the weight of things. If you were to move your swimming pool to another planet, the pressure at the bottom would be different because the water in the pool weighed more or less. Similarly for air.

Answer 4

Yes. The reason is because molecules of air (mostly nitrogen and oxygen) have mass, and therefore are acted upon by the gravity of the earth. If the earth had no gravity, there would be no force pulling the atmosphere towards the surface. In that case the atmosphere would simply waft away. The force pulling the atmosphere towards the earth -- gravity -- is what pressurizes the earth's atmosphere.

Answer 5

Of course it is. Air is a thing that weights. So it is affected by gravity. Gravity effects everything. The higher you go there will be less air(less pressure) because it is less affected by earth.

Answer 6

Yes it is - at sea level the weight of all that air stacked on top of you is 14.7 Pounds per square inch - But you've lived your entire life at or near that pressure, so it seems normal to you. Go higher or lower (Mountains, deadsea) and the weight of the air stacked above you lessens or increases thus showing that Air Pressure is directly effected by Gravity -

However, since Air is essentially fluid in its motions it, AIr itself, can contribute to a heightening or lowering of air pressure, simply by piling up or spreading out, causing high and low pressures respectively. But thats a mostly horizontal phenomenon (weather), while the other is vertical (gravity derived pressure).

Answer 7

Yes, since the force of gravity is a function of distance two objects are from each other. The air closer to the earth has more gravitational force acting on it and therefore, you have more pressure at sealevel.

Answer 8

Sort of, the air particles have mass so gravity is pulling at them. If you were to increase gravity, you would increase air pressure.

Answer 9

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