| A | B |
|---|
| reflection | The bouncing back of an object or a wave when it hits a surface through which it cannot pass |
| refraction | the bending of waves as they enter a new medium at an angle |
| interference | the interaction between waves that meet |
| constructive interference | the interfeence that occurs when waves combine to make a wave with a larger amplitude |
| destructive interference | the interference that occurs when two waves combine to make a wave with a smaller amplitude |
| standing wave | a wave that appears in one place, even though it is really two waves interfering as they pass through each other |
| antinode | a point of maximum amplitude on a standing wave |
| law of reflection | the rule that the angle of reflection equals the angle of incidence |
| diffraction | the bending of waves as they move around a barrier or pass through an opening |
| node | a point of zero amplitude on a standing wave |
| resonance | the increase in the amplitude of a vibration that occurs when external vibrations match an object's natural frequency |
