Across
- 2. unit in which frequency is measured
- 4. shape of the plot of a wave
- 7. used to visualize sound waves on screen
- 8. sound with frequency more than 20000Hz
- 11. region in sound wave with more density
Down
- 1. number of waves that pass in one second
- 3. distance from one point on a wave to the same point on the next wave
- 5. changes sound to electrical signal
- 6. depends on frequency
- 9. distance of center of wave to the highest or lowest point
- 10. increases the amplitude of electrical signal