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Atmospheric pressure


Atmospheric pressure, sometimes also called barometric pressure, is the pressure exerted by .... One atmosphere (101 kPa or 14.7 psi) is the pressure caused by the weight of a column of fresh water ...

Atmospheric Pressure


Key idea: Atmospheric pressure is caused by the weight of the atmosphere pushing down on itself and on the surface below it. Pressure is defined as the force ...

Q & A: what causes atmospheric pressure? | Department of Physics ...


Jan 11, 2013 ... Consider the three statements 1)Air pressure acts from all directions 2)Air ... The atmospheric weight isn't quite as proximate a cause of the ...

What causes atmospheric pressure? - Quora


Doesnt that answer itself: The atmosphere. The atmosphere is made of gases. Gases are matter. Matter has mass. Mass under the influence of gravitational pull.

Geography4Kids.com: Atmosphere: Pressure


This tutorial introduces atmospheric pressure. Other sections ... atmosphere. This extra energy causes the molecules to get excited and the temperature goes up.

Atmospheric pressure | Define Atmospheric pressure at Dictionary.com


Atmospheric pressure definition, the pressure exerted by the earth's ... areas of low air pressure, the air is less dense and relatively warm, which causes it to rise.



If the pressure began to rise, that was a sign of tranquil weather. There is also a small diurnal variation in pressure caused by the atmospheric tides.

Pressure | Climate Education Modules for K-12


Aug 13, 2013 ... Atmospheric pressure determines the types of weather that are likely ... High pressure in the atmosphere causes the air to compress and sink, ...

Atmospheric pressure - definition of atmospheric pressure by The ...

www.thefreedictionary.com/atmospheric pressure

Pressure caused by the weight of the atmosphere. At sea level it has a mean value of one atmosphere but reduces with increasing altitude. Also called ...



The atmospheric pressure is the weight exerted by the overhead atmosphere on a .... The small fluctuations in slope in Figure 2-2 are caused by variations of ...

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atmospheric pressure - National Geographic Society


May 14, 2011 ... That pressure is called atmospheric pressure, or air pressure. ... from higher pressure to lower pressure can cause decompression sickness.

Cause of atmospheric pressure | Physics Forums - The Fusion of ...


Jan 2, 2012 ... Imagine an open empty vessel (with air) at atmospheric pressure as per ... a problem in understanding the real cause of atmospheric pressure.

summarize the cause of atmospheric pressure.? | Yahoo Answers


Feb 3, 2008 ... Best Answer: The atoms and molecules that make up the various layers in the atmosphere are always moving in random directions. Despite ...