Across
- 4. a medium is a solid, liquid, or gas, vibrations need these in order to travel.
- 5. for vibrations to travel.
- 8. a type of energy that need to travel through a medium.
- 9. how high or low a sound is.
- 10. high frequency and short wavelength.
Down
- 1. what a sound vibrates through
- 2. how many times something passes in that amount of time.
- 3. a wave that is pressed tightly together.
- 6. a longitudinal wave that is spread apart .
- 7. low frequency and long wavelength.