Sound

Across

• 1. How far a wave travels every second (5)
• 4. The distance from the rest position to the crest or trough of a wave (9)
• 5. What sound cannot travel through? (6)
• 6. The unit used to measure sound levels (8)
• 9. Both wavelength and amplitude can be measured in........ (6)
• 10. The shortest distance before a wave pattern repeats (10)