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How does Pascal's principle relate to hydraulic lifts? Hydraulic lifts use Pascal's principle to amplify force. Pascal's principle tells us that pressure is transmitted equally throughout a static fluid. A small force exerted on a small area over a large distance is translated into a large force exerted on a large area over a small distance in a device like a car lift.
The pascal (pronounced pass-KAL and abbreviated Pa) is the unit of pressure or stress in the International System of Units (SI). It is named after the scientist Blaise Pascal. One pascal is equivalent to one newton (1 N) of force applied over an area of one meter squared (1 m2). That is, 1 Pa = 1 N Â· m-2. Reduced to base units in SI, one pascal is one kilogram per meter per second squared; that is, 1 Pa = 1 kg Â· m-1 Â· s-2.