1. Engineering Concepts Chapter 5 Terms

2. ACTUATOR A device that transfers fluid or electrical energy into mechanical energy.

3. BERNOULLI’S LAW  A change in the velocity of a fluid caused by a constriction produces an opposite change in pressure.

4. BOYLE’S LAW  The volume of a gas at a constant temperature is inversely proportional to its pressure.

5. CYLINDER  A cylindrical chamber in which a piston slides to move or compress a fluid.

6. FRICTION  A force that opposes the motion or intended motion of a body in contact with another body.

7. HYDRAULICS  A system that uses pressurized fluid to transfer energy.

8. PASCAL’S LAW  A law that states when a force is exerted on a fluid, the fluid transfers this force equally against the walls of the vessel.

9. PNEUMATICS  A system that uses pressurized air to transfer energy.

10. PRESSURE  The force generated when energy is applied to a fluid; force per unit area.

11. VALVE  Any of numerous mechanical devices by which the flow of liquid, gas, or loose material in bulk may be started, stopped, or regulated by a movable part that opens, shuts, or partially obstructs one or more ports or passageways.