3 applications of pressure for class 8

Answer:

Applications of pressure are given below.

When air is sucked out of a drinking straw, the air pressure inside it decreases, and the atmospheric pressure outside forces the liquid to go inside the straw.

The area of the edge of a knife’s blade is extremely small. This creates pressure high enough for the blade to cut through a material. 

Syringes are used to take blood for blood tests. The pressure of the liquid forces the liquid to move into the syringe when its plunger is withdrawn. 

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