| A | B |
|---|
| Density | The ratio of mass divided by volume |
| Pressure | Force per unit area. |
| Buoyancy | Upward pressure exerted by a fluid in which a body is immersed. |
| Archimedes principle | An object submerged in a fluid (partially or entirely) is buoyed up by a force equal to the weight of the fluid displaced by the object. |
| Bernoulli principle | Fluid velocity is high implies pressure is low and vice versa. |
| Pascal's principle | External pressure applied to a confined fluid is transmitted throughout the fluid |
| Density unit | SI: Kg/m^3 |
| Pressure unit | SI: 1 N/m^2 = 1Pascal. |
| Laminar flow | Smooth flow of fluid along streamlines |
| Turbulent flow | Fluid flow is not smooth. Often characterized as whirlpools or eddies. |
| Equation of continuity | A1v1= A2v2 (A is cross section area of the fluid and v is the fluid velocity) |
| Bernoulli equation | P + rho v^2 + rho gy = Constant (rho = density) |
