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