| A | B |
|---|
| electromagnetic waves | transverse waves consisting of changing electric field and changing magnetic fields |
| electric field | in a region of space exerts electric forces on charged particles |
| magnetic field | a region of space produces magnetic fields, and vibrating charges |
| electromagnetic radiation | transfer of energy of electromagnetic waves traveling through matter or across space |
| photoelectric effect | emission of electrons from a metal caused by light striking the metal |
| photons | packets of electromagnetic energy |
| intensity | rate at which a wave's energy flows through a given unit of area |
| electromagnetic spectrum | full range of frequencies of electromagnetic radiation |
| amplitude modulation | amplitude of the wave is varied |
| frequency modulation | frequency of the wave is varied |
