Web Results

Atmospheric pressure

en.wikipedia.org/wiki/Atmospheric_pressure

Atmospheric pressure, sometimes also called barometric pressure, is the pressure exerted by the weight of air in the ...

Measuring Atmospheric Pressure - Windows to the Universe

www.windows2universe.org/earth/Atmosphere/measuring_press.html

Jun 11, 2010 ... This image shows three common ways that atmospheric pressure is measured - using a mercurial barometer, an aneroid barometer or a ...

What instrument is used to measure atmospheric pressure? | How ...

howthingsfly.si.edu/ask-an-explainer/what-instrument-used-measure-atmospheric-pressure

Sep 19, 2011 ... A: A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. A simple barometer consists of a long glass ...

How Do We Measure Air Pressure - Tree House Weather Kids ...

extension.illinois.edu/treehouse/airpressure.cfm?Slide=3

An instrument that measures air pressure is called a barometer. One of the first barometers was developed in the 1600s. The original instrument had mercury in  ...

Understanding air pressure - USATODAY.com

usatoday30.usatoday.com/weather/wbarocx.htm

Since the pressure depends upon the amount of air above the point where you're measuring the pressure, the pressure decreases as you go higher.

www.ask.com/youtube?q=How Is Atmospheric Pressure Measured&v=4K_XJGuRy88
May 3, 2013 ... How an old fashioned mercury barometer measures barometric pressure. (a.k.a. atmospheric pressure).

CHAPTER 2. ATMOSPHERIC PRESSURE

acmg.seas.harvard.edu/people/faculty/djj/book/bookchap2.html

The atmospheric pressure is the weight exerted by the overhead atmosphere on a unit area of surface. It can be measured with a mercury barometer, consisting ...

atmospheric pressure | Britannica.com

www.britannica.com/science/atmospheric-pressure

Force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area). Atmospheric pressure can be measured with a ...

atmospheric pressure - National Geographic Society

nationalgeographic.org/encyclopedia/atmospheric-pressure/

May 14, 2011 ... It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.

Atmospheric Pressure: force exerted by the weight of the air

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

Atmospheric pressure is defined as the force per unit area exerted against a ... Atmospheric pressure is measured with an instrument called a "barometer", which ...

Answer
How Is Atmospheric Pressure Measured?
Atmospheric pressure is determined via the use of a barometer. Barometers are either mercury-filled or aneroid. The mercury variety consists of a tube, the top of which is closed and the bottom open. The tube is generally labeled with units of... More »
Difficulty: Easy
Source: www.ehow.com
More Info

How is air pressure measured? | Reference.com

www.reference.com

Air pressure is measured by using a barometer, the value of which is given in varying units, including inches of mercury (in Hg) or millimeters of mercury (mm ...

Atmospheric Pressure - HyperPhysics

hyperphysics.phy-astr.gsu.edu

The system is said to have a positive gauge pressure exerted by the air supply. ... The standard atmospheric pressure is measured in various units: ...

measurement of atmospheric pressure - WMO

www.wmo.int

tendency is the character and amount of atmospheric pressure change for a 3 h ... The basic unit for atmospheric pressure measurements is the pascal (Pa) (or ...