Question

I. Multiple Choice Questions
Choose the correct option.
The pressure which is exerted by air around us is known as
(a) force
(b) atmospheric pressure
(c) muscular force
(d) friction

Answer 1

Answer:

b

Explanation:

b) atmospheric pressure

Answer 2

Answer:

The pressure which is exerted by the air around us is known as (b)atmospheric pressure.

Explanation:

• Atmospheric pressure is the pressure exerted by the surrounding air.
• It is the force per unit area that is exerted due to the weight of the atmosphere.
• The instrument used to measure atmospheric pressure is called a barometer.
• The SI unit of atmospheric pressure is the pascal (Pa) and it is also expressed in terms of atmospheric units (atm).