Pascal's Principle
The principle stating that pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and container walls.
Governing formula
ΔP = F1 / A1 = F2 / A2
SI unit
Pa
In depth
Forms the basis of hydraulic force multiplication: a small force applied over small area A1 creates a large output force on large area A2.
Examples in the real world
Hydraulic car lifts, hydraulic brakes in automobiles, and heavy excavation machinery.