11. Which of the following quantities is transferred during wave propagation?
12. A sound wave is produced when an object
13. The wavelength of a wave is measured in
14. An echo occurs when a sound wave is
15. Another name for the unit Hertz is
16. Sound travels fastest in
17. Which of the following does not describe a sound wave?
18. An animal that can hear sound frequencies higher than a human child is
19. Hitting a drum harder makes the sound
20. The part of the ear that responds to sound waves like a microphones diaphragm is the
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