2.1 Liquid Pressure Form 5 KSSM

Class Work : 2.1 Exercises link : https://drive.google.com/file/d/1iPe_... The pressure in a liquid is different at different depths. Pressure increases as the depth increases. The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions. For example, the pressure acting on a dam at the bottom of a reservoir is greater than the pressure acting near the top. This is why dam walls are usually wedge-shaped. The pressure caused by a column of liquid can be calculated using the equation: pressure = height of column × density of the liquid × gravitational field strength This is when: pressure (p) is measured in pascals (Pa) height of column (h) is measured in metres (m) density (ρ) is measured in kilograms per metre cubed (kg/m3) gravitational field strength (g) is measured in newtons per kilogram (N/kg)