1
Vibration of particles of the medium is parallel to the direction of wave propagation
2
Sound waves with frequency greater than 20kHz
3
When the coils are forced apart
4
When the coils are pinched closely together
5
Distance between successive crests of a wave
6
Vibration of particles of the medium is perpendicular to the direction of wave propagation
7
The number of wave cycles per second
8
The maximum displacement of each particle from its undisturbed position
9
The effect of a pitch of an approaching car siren is higher than the pitch of a receding siren
10
Reflected sounds from large surfaces
