| A | B |
|---|
 | diffraction |
 | reflection |
 | refraction |
 | constructive interference |
 | destructive interference |
 | concave mirror |
 | convex mirror |
 | concave lens |
 | convex lens |
| wave | disturbance that carries energy |
| mechanical wave | needs a medium for travel |
| electromagnetic wave | only wave that can travel in a vacuum |
| radio | EM wave w/ longest wavelength |
| light | only EM wave we can see |
| reflection(definition) | wave characteristic in which waves bounce off a surface |
| refraction(definition) | wave characteristic in which waves bend as they move through different media |
| diffraction(definition) | bending of a wave as it travel around a corner |
| interference | what happens when 2 waves meet |
| Sound | Mechanical & Longitudinal Wave |
| Light | EM & Transverse wave |
