Ch. 2 - Atmospheric pressure

Question 1

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

Answer 1

Atmospheric pressure

Question 2

Datum

Answer 2

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

Question 3

Barometer

Answer 3

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