| A | B |
|---|
| magnetic field | vector quantities that exist in a region in space where a magnetic force occurs |
| polarized | two distinct and opposite ends |
| refraction | occurs when light crosses the boundary between one material and another |
| frequency | number of complete oscillations that a wave makes each second |
| snell's law | (ni)(sin 0i)=(nr)(sin 0r) |
| critical angle | the angle at which total internal reflection occurs |
| index of refration | the ratio of the speed of light in a vacuum to the speed of light in the medium |
| power | the amount of work done |
| conventional current | the flow of positive charges |
| watt | unit for power |
| tesla | unit for magnetic field strength |
| joule | unit for work or energy |
| meter | the unit for wavelength |
| hertz | the unit for frequency |
| second | the unit for period |
| voltage | the unit for potential difference |
| coulomb | the unit for charge |
| ampere | the unit for current |
