Wave Behaviors

2. A ray will have the same angle of incidence and reflection
6. Waves that move parallel to the direction of the wave
7. When reflected sound waves return to the source more than 0.1 seconds after the initial sound
8. When waves bounce off a boundary at an angle equal to the angle of the waves approach
9. A disturbance that travels through a medium between two locations
10. Two or more wave trains moving on coincident lines
11. The change in direction of a wave as it passes into a new medium

1. An upward shift in frequency of a wave for observers as the wave's source is approaching and an equal downward shift in frequency for observers when the wave's source is receding
3. Waves that move perpendicular to the direction the wave moves
4. A change in direction of waves as they pass around a barrier in their path
5. When one object vibrates at the natural frequency of a second object and forces the second object to vibrate