| A | B |
|---|
| Pressure | The force exerted on a surface divided by the total area over which the force is exerted |
| paschal | a unit of pressure equal to the force of one newton per square meter |
| fluid | any substance that can flow and easily change shape |
| Paschal's principle | rule that when force is applied to a confined fluid, the increase in pressure is transmitted equally to all parts of the fluid |
| hydraulic system | multiplies force by transmitting pressure from a small suftace area through a confined fluid to a larger surface area |
| buoyant force | upward force exerted by a fluid on a submerged object |
| Archimedes' principle | rule that the buoyant force on an object is equal to the weight of the fluid |
| Bernoulli's principle | rule that a stream of fast moving fluid exerts less pressure than the surrounding fluid |
| symbol for pascal | Pa |
| force pump | causes fluid to move from one place to another by increasing the pressure in the fluid |
| Density | Mass of a substance divided by the volume |
| atomizer | device that sprays fluids using Bernoulli's principle |
