Across
- 1. how high or low a sound is
- 2. all the different colors (e.g red, violet)
- 5. unit for measuring loudness of a sound
- 7. device that shows a graph of a sound
- 10. space with no particles in it
- 11. a shiny surface which reflects light
Down
- 1. this makes light disperse and split into a spectrum of color
- 3. when a mirror bounces off a surface
- 4. when light bends when it goes into a different material
- 6. number of vibrations per second
- 8. determines how loud or soft a sound is
- 9. when white light separates into colors of the spectrum