Pressure on Liquids

Pressure on Liquids

The pressure at a depth in a liquid is caused by the weight of the liquid above.
The formula for liquid pressure is derived as follows:
The volume of liquid is $V = lwh$.
Mass $m = \rho lwh$.
Weight $W = \rho lwhg$.
Pressure $P = \frac{W}{lw} = \rho hg$.

The liquid pressure equals height × density × acceleration due to gravity.
Pressure depends on height and density (and is independent of the container shape).