| Term | Definition |
|---|
| pressure | the result of force distributed over an area. |
| pascal | (Pa); is the SI unit of pressure( newtons per square meter). |
| fluid | is a substance that assumes the shape of the its container.( both liquid and gases are fluids). |
| hydraulic system | is a device that uses pressurized fluid acting on pistons of different sizes to change a force. |
| lift | the pressure difference b/w the top and bottom of the wing creats an upward force. |
| buoyant | is the ability of a fluid to exert an upward force on an object placed in it. |
| buoyant force | an upward force acting on an object in a fluid. |
| Archimedes' principle | the buoyant force on an object is equal to the weight of fluid displaced by the object. |
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