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chapter7 section2
air pressure
Term | Definition |
---|---|
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 |