Across
- 2. how high or low a sound is
- 4. how fast the wave or vibrations pass through matter
- 5. vibrating forms of energy that look like waves
- 8. sound waves bouncing off of a surface
- 9. a kind of energy, made by vibrations, that travel through matter
Down
- 1. the measurement of sound
- 3. how loud or soft a sound is
- 4. a measure of the amount of energy in a sound wave
- 6. to move back and forth quickly
- 7. the number of waves that pass a certain point per second