Across
- 4. the matter a wave travels through
- 7. a wave that travels in the same direction as source's motion
- 8. the number of times a wave repeats in a given amount of time
- 9. any disturbance that transfers energy from place to place
- 10. low point of wave
- 12. energy of a wave is transferred to the material it encounters
- 15. determined by the distance it travels before it starts to repeat
- 16. a wave's energy is directly __________ to frequency
- 17. high point of wave
- 19. waves transmit ______ from place to place
- 21. the law of reflection states that the ____ of incidence equals the ____ of reflection
- 24. points of zero amplitude
- 25. the bending of waves due to a change in speed
- 26. halfway between crest and trough
Down
- 1. empty space
- 2. when a wave bounces off and heads in a different direction
- 3. travels perpendicular to the direction of the source's motion
- 5. unit of measurement for frequency
- 6. electromagnetic waves are unique in that they can travel _____ a medium
- 11. a unit of measurement for energy
- 13. combinations of transverse and longitudinal waves
- 14. when waves combine to form a larger wave or they cancel out
- 18. a wave that appears to stand in one place
- 20. an increase in the amplitude of a vibration
- 22. the scattering or bending of waves around objects
- 23. distance between highest crest and resting position