Ch. 2 - Atmospheric pressure Flashcards Preview

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Flashcards in Ch. 2 - Atmospheric pressure Deck (3)
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1

_______ ______ is the result of a weight of a column of air above a given datum

Atmospheric pressure

2

Datum

Any elevation that an observer selects as the point where atmospheric pressure is measured

3

Barometer

Measures atmospheric pressure, works on the principle that the airs pressure is able to support a 0.76m column of mercury at sea level, as height is gained this value reduces and can be read against a suitably calibrated pointer