Across
- 3. number of waves that pass a fixed place in a given amount of time.
- 4. where air particules are furthest apart
- 9. known as a compression wave
- 10. a form of solid, liquid, gas that something goes through
Down
- 1. the way waves travel
- 2. moves back an fourth quickly to create sound
- 5. where air particules are closest together
- 6. vertical distance from the equilbrium point to it's crest
- 7. a type of longitudinal wave
- 8. the absence of matter