Question

Why the pressure below the surface of water increases with depth?

Answer 1

It is due to increase in hydrostatic pressure under water due to gravitational force of earth. Hydrostatic pressure is the force per unit area exerted by a liquid on an object. As water has some weight,it will put more pressure over us when we are inside the water. As much we will go deeper in water, the pressure will increase.

Answer 2

Water pressure increases with depth because the water up above weighs down on the water below. Pressure can be measured in a variety of ways. Water pressure can be easily calculated with a simple equation involving depth, density and gravity.