What is meant by atmospheric pressure?

One Line Answer

The pressure exerted by the atmospheric gases on its surroundings and on the surface of the earth is called atmospheric pressure.

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Chapter 3: Fluids - Exercise [Page 37]

Chapter 3 Fluids
Exercise | Q V. 4. | Page 37

Suggest two methods to find out wind direction at a given place.

Why is the barometric height used as unit to express the atmospheric pressure?

How does the atmospheric pressure change with altitude? Draw an approximate graph to show this variation.

Convert 1 mm of Hg into pascal. Take density of Hg = 13.6 x 10³ kg m^-3 and g = 9.8 m s^-2 .

State two advantages of an aneroid barometer.

How is the reading of a barometer affected when it is taken to: A mine

How is the reading of a barometer affected when it is taken to: A hill

A solid weighs 2.10 N in air. It has a relative density of 8.4. How much will the body weigh if placed: In a liquid of relative density 1.2

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

Humans are sensitive even to a small variations in pressure.