Q. 174.5( 2 Votes )
Describe an activity to show that a liquid exerts equal pressure in all the direction at a given depth.
Answer :
Activity: To show that liquid exerts equal pressure in all the direction at a given depth.
Theory: Pressure is force per unit area. At any point in a fluid, the pressure is the same in all directions.
P = gh, where
Ø P is the water pressure at a particular depth
Ø g is the acceleration due to gravity
Ø h is the depth of the water at that point
Materials Required: A plastic bottle, hammer, and nail, ruler
Experiment:
Ø Make holes of the same size on the bottle with the help of hammer and nail.
Ø Make sure that the holes should be at the same distance from the bottom surface.
Ø Now fill the bottle with water.
Ø Measure the distance from the bottle to the distance up to which the water comes out.
Conclusion: We will notice that the distance covered by the water coming out of the holes is equal. This implies that the pressure of the liquid at given depth is the same.
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