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chapter7 section2

air pressure

Air pressure The pressure caused by the weight of a coulemb of air pusshing down on an area.
Aneroid Barmometer An instrument that measures changes in the air pressuer without using liqued.
Altitude Elavetion above sea level
Barmometer An instrament used to mesure changes in air pressure
Density The amount of mass of a substanc in a given voulme
Pressure The fource exerted on a surface divided by the total area over which the fource is exered .
mecury barnometer a instrament that mesures air with mecury liqued
Created by: awiltshire24