Sound revision Senior 1

3. A wave where oscillations are in the same direction (parallel) to the direction of travel of the wave
5. Part of the ear that contains hairs that vibrate
7. A Mexican wave is an example of a _________ wave
8. us how high pitched a sound is- frequency
10. Part of the ear that gathers sound and funnels it down the ear canal
12. Longer object vibrate at _________ frequencies
14. A sound over 20,000Hz is called
16. A wave where oscillations at 900 (perpendicular to the direction of travel
21. Tells us how loud a sound is

1. Sound will travel slowest through a
2. An example of a transverse wave
4. The human hearing range is between ______ Hz and 20,000Hz
6. Frequency is measured in
9. A wave caused by the vibration of air particles
11. The transfer of energy without the permanent transfer of matter
13. 3 little bones in the ear that vibrate and amplify sound
15. 300 000 000m/s (3x108) is the speed of
17. Adults can hear less high pitched sounds as the ______ hairs in the cochlea become damaged with age
18. Sound will travel fastest through a
19. 330m/s is the speed of
20. Sound cant travel through a