Synonym: Primary Wave wave (p-wave) = compressional Compressional wave
A body wave caused by a normal stress of a matter and as such have strain oscillations along the direction of p-wave propagation.
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P-wave can propagate through gases, liquids or solids and moves faster than other body waves (almost twice faster than s-wave).
See also
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Physics / Mechanics / Continuum mechanics / Mechanical waves / Body wave
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