Transmission
Transmission is the travelling of a wave through a medium
Properties of Transmission
The wavelength of a wave does not change as it travels
A change in medium is the only way to change the speed of a wave
An increase in frequency shortens the wave length; speed does not change
A change in wave length changes the frequency; speed remains the same
The wavelength of a wave does not change as it travels
A change in medium is the only way to change the speed of a wave
An increase in frequency shortens the wave length; speed does not change
A change in wave length changes the frequency; speed remains the same
For Example:
As a whip is swung, energy is exerted from the handle and the energy transfers along the length of the whip. The whip is tapered from thick to thin (the medium is changing), the energy travels faster and faster until it travels in excess of 343 m/s and breaks the sound barrier - creating the cracking sound we hear.
As a whip is swung, energy is exerted from the handle and the energy transfers along the length of the whip. The whip is tapered from thick to thin (the medium is changing), the energy travels faster and faster until it travels in excess of 343 m/s and breaks the sound barrier - creating the cracking sound we hear.