Across
- 4. Unit of sound
- 7. a type of wave that vibrates parallel to the direction of the wave
- 10. a material that moves energy or light from one location to another
- 11. how low or high a note is
- 12. the distance between two crests on a wave
- 13. the rate at which waves occurs over a particular period of time
Down
- 1. the lowest point of a wave
- 2. the redirection of a wave as it passes from one medium to another
- 3. the return of light or sound waves from a surface
- 5. a type of science
- 6. a type of wave that vibrates perpendicular to the direction of the wave
- 8. how light travels
- 9. the highest point of a sound wave