Question

The pressure exerted by air is called atmospheric pressure. (State whether the following statements are true or false.)
(A) True
(B) False

Answer 1

Hint: A persistent physical force applied on or against an entity by something in contact with it is referred to as pressure. Then air pressure is the force applied by the air on objects around it. The pressure exerted by air or air pressure comes about by the air molecules’ weight.

Complete answer:
The given statement is “The pressure exerted by air is called atmospheric pressure.” In order to understand if the given statement is true or false, let us compare the meanings of ‘pressure exerted by air’ and ‘atmospheric pressure’. If the definitions of the two resemble each other, then the given statement is true, otherwise it is false.

Let us take the definition of ‘pressure exerted by air’: It is a fact that the air around you is made up of weighted air molecules. As a result, air pushes against anything it comes into contact with. This push is a force or pressure, called air pressure.

Now take the definition of ‘atmospheric pressure’ : The pressure applied on a surface by the air above it when gravity forces it to Earth is known as atmospheric pressure.

When we compare the two definitions of air pressure and atmospheric pressure, it is clear that they are both one and the same. In conclusion, the force exerted by the air on the earth is the pressure applied by the atmosphere. So yes the pressure exerted by air is indeed called atmospheric pressure.

Therefore the correct answer is option ‘A’.

Note: As air pressure is reduced, the air rises to higher levels of the atmosphere, where temperatures are cooler. As the capacity to retain water vapor decreases, the vapor quickly condenses, forming clouds and eventually precipitation.