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science
| Term | Definition |
|---|---|
| Pascal's principle | when force is applied to a fluid in a closed container, the pressure increases everywhere by the same amount |
| density | mass of an object divided by the volume it occupies |
| pressure | force per unit area applied on the surface of an object |
| buoyant force | upward force exerted by a fluid on any object in a fluid |
| Archimedes' principle | buoyant force on an object is equal to the weight it displaces |
| fluid | substance that has no definite shape and has the ability to flow |
| hydraulic system | uses a fluid to increase an applied force |
| Pascal | unit of pressure in the SI system |
| barometer | used to measure atmospheric pressure |
| weight | mass times acceleration due to gravity |
| Bernoulli's principle | when the speed of a fluid increases, the pressure exerted by the fluid decreases |
| lift | upward force produced by an airplane |