| A | B |
|---|
| transverse wave | particles move perpendicularly to that of the motion |
| longitudinal wave | particles move parallel to that of the motion |
| sound waves & mechanical waves do or do not require a medium? | require a medium |
| Energy is proportional to ______ of the amplitude | square of the amplitude |
| standing wave | nodes and antinodes are stationary |
| period | time to make one complete wave cycle |
| frequency | number of wave cycles in one second (Hz) |
| crests | high points of the wave |
| troughs | low points of the waves |
| amplitude | distance from the equilibrium point to the crest or trough |
| interference | two waves meet displacements are the algebraic sum |
| constructive interference | waves that meet with an antinode at the point of maximum displacement |
| destructive interference | medium remains undisturbed at a point refered to as the node |
| refraction | change in direction of the waves at the boundary of two different media |
| diffraction | spreading of waves around the edge of a barrier |
| law of reflection | angle of incidence equals the angle of reflection |
