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Air pressure is greater near the surface because air has mass, which means that the mass of the Earth causes the force of gravity to pull the air towards the surface. This causes the air molecules to compress, which increases air pressure. At the same time, the air molecules want to depressurize, because they are a gas, causing them to physically push on each other. This causes the air pressure closest to the surface to be highest, because the depth of the air above those closest to the surface is greatest. As altitude increases, air pressure decreases for the same reason - there is less mass pushing from above.
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∙ 13y ago
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Is the force is greater on a smooth surface or on a rough surface?
smooth surface.
Where is the pressure greater . in 10 m below the surface of the sea or 20 m below the surface of the sea?
The greater the depth the greater the pressure.
What effect does surface area have on evaporation?
The greater the surface area, the greater the rate of evaporation under identical atmospheric conditions.
The greater the surface area of an object the greater the buoyant force?
TRUE
What has surface tension greater than water?
Cold custard has a greater surface tension than water, Hence the reason you can run on it.
What does airpressure mean?
Air Pressure means the measure of the force with which air molecules pushed on a surface.
Why does venus have a greater gravity pull the earth does?
It hasn't. The acceleration of gravity on or near the surface of Venusis about 91% of what it is on or near the surface of the Earth.(That's less than what it is here.)
Is air pressure greater near the earths surface or at higher altitudes?
I am sure that if you think about the problems encountered by climbers on Mount Everest you might be able to answer that yourself. Near the Earth's surface.
Is air pressure greater near earths surface or at higher altitudes?
I am sure that if you think about the problems encountered by climbers on Mount Everest you might be able to answer that yourself. Near the Earth's surface.
What measures airpressure?
it is a barometer
Why does a dam at the end of a lake need to be wider at the bottom?
Because water pressure is greater near the surface of the water
What happens when the atmospheric pressure is greatest near the Earths surface?
Air pressure is always greater nearer the earth surface than at altitude due to the mass of air above.
Is it true seismic waves of an earthquake are greater closer to the surface of the crust near a city?
No, the location of a city is unknown by and irrelevant to the earthquake.
Effect of surface area from gravity on earth?
the greater the surface area the greater the pull
What are lines on a maps that join places that have the same airpressure?
isobars
Is the force is greater on a smooth surface or on a rough surface?
smooth surface.
Where is the pressure greater . in 10 m below the surface of the sea or 20 m below the surface of the sea?
The greater the depth the greater the pressure.
