| Term | Definition |
|---|
| fluid | anything that flows |
| hydraulics | confined, pressurized system that uses moving liquids to operate |
| flow rate | the speed that a fluid moves in a given amount of time (mL/sec) |
| buoyancy | the upward force that a fluid exerts on an object less dense than itself |
| hydrometer | a device used to measure the density of liquids |
| pneumatic | a confined, pressurized system that uses moving air or other gases |
| viscosity | the physical property of a liquid that limits it's ability to flow (thickness) |
| piston | a cylinder or disk inside a larger cylindar that moves under fluid pressure |
| drag | a force that acts to slow a body moving through a fluid |
| compressible | capable of being squeezed into smaller volume |
| aerodynamics | concerns the flow of air around solid objects or the effect of air on objects moving through it |
| density | the amount of mass in a certain volume of a substance (g/mL) |
| barometer | the most common device for measuring air pressure |
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