.
Permanently in the direction of the wave motion.
Permanently in a direction perpendicular to the wave.
Temporarily in the direction of the wave motion.
Temporarily in a direction perpendicular to the wave
Amplitude
Wavelength.
Frequency.
Rarefaction.
Amplitude.
Wavelength.
Frequency.
Trough.
Longitudinal.
Electromagnetic.
A pulse.
Transverse
Wavelength
Troughs
Crests
Amplitude
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