What is meant by atmospheric pressure?

One Line Answer

The weight of air above a given area on the earth’s surface is called atmospheric pressure or air pressure.

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Chapter 2.2: Weather and Climate - Evaluation [Page 103]

Chapter 2.2 Weather and Climate
Evaluation | Q V. 3 | Page 103

State two experiences that made you think that air exerts pressure.

What do you mean by atmospheric pressure?

Write the numerical value of the atmospheric pressure on the surface of earth in pascal.

Explain how is the height of mercury column in tube of a simple barometer, a measure of the atmospheric pressure.

State two advantages of an aneroid barometer over a simple barometer.

What do the following indicate in a barometer regarding weather : Gradual rise in the mercury level?

Explain briefly the factors that affect Atmospheric Pressure.

State two advantages of an aneroid barometer.

What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.

Give reasons:

Why artificial pressure creates in Aircraft?