Across
- 1. pollution – Harmful or unwanted sound in the environment.
- 3. – The maximum height of a wave, linked to loudness.
- 7. – A type of wave where particles move at right angles to the wave’s direction.
- 10. – Number of wave cycles per second.
- 11. – Sound waves with frequencies above human hearing.
- 13. – How high or low a sound is, determined by frequency.
- 14. – Spiral-shaped part of the inner ear that detects sound vibrations.
Down
- 2. – A device that converts electrical signals into sound waves.
- 4. – A device that converts sound waves into electrical signals.
- 5. – A type of wave where particles move parallel to the wave’s direction.
- 6. – The unit of frequency, meaning cycles per second.
- 8. – A rapid back-and-forth motion that produces sound.
- 9. – The perceived loudness of a sound.
- 12. – The unit used to measure sound intensity.
