By: Nicole Rooks.


An oscillating motion that moves outward from the source of some disturbance (ripples running away from a pebble tossed in a pond). Waves transmit the energy of the disturbance away from its source.

Transverse Waves

A wave vibrating at right angles to the direction of its propagation.

Compressional/Longitudinal Waves

A wave vibrating in the direction of propagation.

Doppler Effect

An increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other. The effect causes the sudden change in pitch noticeable in a passing siren, as well as the redshift seen by astronomers.

The Effect Of Changing Amplitude and Frequency On Transverse Waves:

The energy transported by a wave is directly proportional to the square of the amplitude of the wave.


The bending of a wave when it enters a medium where its speed is different.
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