| A | B |
| electromagnetic wave | vibrating electric and magnetic fields that are accelerating |
| radiation | the energy that electromagnetic waves produce |
| medium | electromagnetic waves do not require a |
| transverse waves | electromagnetic waves are |
| polarized light | light that passes through a polarized filter |
| wave model of light | when light passes through a polarized filter and acts like a wave |
| particle model of light | when light acts like a stream of particles and causes electrons to move |
| photon | tiny particles of energy |
| photoelectric effect | when light causes electrons to be knocked out of metal |