pressure: Hydraulic Force

According to Pascal's law the pressure exerted on an enclosed fluid is transmitted undiminished throughout the fluid and acts equally in all directions. On the basis of this law, various hydraulic devices are used to multiply a force. For example, a force of 10 N exerted on a piston whose area is 1 sq m and which is inserted into an enclosed chamber filled with water or another fluid transmits a pressure of 10 N per sq m throughout the fluid. If a second piston, at another part of the chamber, has an area of 10 sq m, then this pressure results in a force of 10 N being exerted on each square meter of its area, or 100 N total force.

Sections in this article:

• Introduction
• Tools for Measuring Pressure
• Hydraulic Force
• Buoyancy
• Influences on and Effects of Pressure
• Pressure of Fluids

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