1. Wave Vocabulary

2. 1. Waves require a medium (material) for energy transfer.

3. 2. A(n) waves causes the particles to vibrate perpendicular to the direction of the waves travel.

4. 3. waves need no medium for travel.

5. 4. The of a wave is the number of waves that pass a given point per second.

6. 5. The of a wave is the reciprocal of its frequency.

7. 6. The of a wave is the distance between corresponding points of consecutive waves.

8. 7. The of a wave depends on the energy the wave is carrying.

9. 8. is the process that occurs when two waves meet at a point.

10. 9. When waves pass from one medium to another, their does not change.

11. 10. The of a wave depends on the medium it is traveling in.

12. 11. A wave is one that seems to be stationary.

13. is the process which occurs when waves entering a new medium change direction because they have changed speed.

14. 13. is the bending of waves around a barrier or through an opening.

15. 14. When two identical wave trains traveling in opposite directions interact, the undisturbed areas in the medium are referred to as and the disturbed areas are referred to as .

16. 15. A line perpendicular to the boundary between two wave media is called a .

17. 16. When waves are reflected, the angle of
16. When waves are reflected, the angle of equals the angle of reflection.

18. 17. When a wave source is moving away from the detector, the. and
17. When a wave source is moving away from the detector, the and of the wave change, while the stays the same.