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www.reference.com/science/air-pressure-change-altitude-e73...

Air pressure changes with altitude because of issues related to gravity. Molecules have more weight the closer they are to the Earth and more of them move to lower elevations as a result; this causes increased pressure because there are more molecules in number and proximity.

ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/prs/hght.rxml

Pressure with Height pressure decreases with increasing altitude The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.

www.answers.com/Q/How_does_air_pressure_change_with...

Gas pressure changes with altitude because the air around the earth is also a gaseous mixture composed of molecules of oxygen, carbon dioxide, nitrogen, argon, and some others, which have atomic ...

scied.ucar.edu/.../change-atmosphere-altitude

Change in the Atmosphere with Altitude. Air pressure changes with altitude. Air is all around us, but we cannot see it. Gravity from the Earth pulls air down - this is called air pressure. We don't feel this pressure because our bodies push an equal amount of pressure outward. This graph shows how air density and air pressure changes with ...

www.npl.co.uk/.../q-a/atmospheric-altitude-pressure-changes

Pressure at the top of a mountain... Atmospheric pressure reduces with altitude for two reasons, both of which are related to gravity. The gravitational attraction* between the earth and air molecules is greater for those molecules nearer to earth than those further away — they have more weight — dragging them closer together and increasing the pressure (force per unit area) between them.

socratic.org/questions/how-does-atmospheric-pressure...

Atmospheric pressure decreases as altitude increases. You can think of atmospheric pressure in the same way you would think of ocean pressure: the deeper you dive, the greater the pressure because more water is pushing down on you. At sea level, you have the weight of all the air above pushing down on you. ... Does air pressure change with ...

www.reference.com/science/temperature-change-altitude-2c0b...

When the air pressure decreases with altitude, so does the temperature. Another factor that contributes to the temperature difference based on altitude is the greenhouse effect. When sunlight falls on the Earth's surface, a portion of its heat is absorbed by the gas molecules in the surroundings.

www.answers.com/Q/Why_does_the_gas_pressure_change_with...

Gas pressure changes with altitude because the air around the earth is also a gaseous mixture composed of molecules of oxygen, carbon dioxide, nitrogen, argon, and some others, which have atomic ...

quizlet.com/21379335/science-chap-3-questions-flash-cards

Science Chap 3 questions. STUDY. PLAY. What is the composition of Earth's atmosphere? nitrogen-78%, Oxygen-21%, other gases-1% such as carbon dioxide, water vapor, and other gases, as well as particles of liquids and solids ... How does air pressure change as altitude increases? Air pressure decreases as altitude increases. As air pressure ...

www.tirerack.com/tires/tiretech/techpage.jsp?techid=167

Significant changes in altitude affects tire pressures when traveling from one elevation to another. Fortunately, this influence is relatively small and can be easily accommodated. Atmospheric pressure is the force exerted on objects by the weight of the air molecules above them. While air...