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Sometimes it makes an echo or reverberation.
An echo of a wave is exactly the same type of wave as the original wave. An echo is simply the original wave returning to the observer, so if you made a sound (a longitudinal wave of vibrating air molecules), the echo is also sound waves.
Reflection
I am guessing a sound wave.
An echo.
Sometimes it makes an echo or reverberation.
An Echo-echo-echo-echo! The answer is Echo
An echo of a wave is exactly the same type of wave as the original wave. An echo is simply the original wave returning to the observer, so if you made a sound (a longitudinal wave of vibrating air molecules), the echo is also sound waves.
An echo is a sound wave that has bounced off a surface
The result of a reflected sound wave is obviously an echo.
A standing wave?
vibrations produces wave
The four basic wave interactions are: wavelength, trough, crest, and amplitude.
Reflection
I am guessing a sound wave.
A wave reflection.
An echo.