Compression waves consist of periodic vibration that take place in the same direction of travel. That means that the movement of the medium is in the same direction as or the opposite direction to the motion of the wave.
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what is a compression wave
a shock wave that compresses the medium through which it is transmitted.
We are all very familiar with sound waves, and we know that even though the word 'wave', generally refers to something having to do with water; it's different with sound waves. A sound wave is an example of a compression wave, a wave that takes place when a fluid is compressed. You can find more information here: http://en. wiktionary. org/wiki/compression_wave
Longitudinal waves, also known as l-waves, are waves in which the displacement of the medium is in the same direction as, or the opposite direction to, the direction of travel of the wave. Mechanical...