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physical phenomena > process > physical process > motion > harmonic motion > wave > longitudinal wave

longitudinal wave
subject			fact

longitudinal wave	has definition A wave vibrating along the direction of propagation.
	is a kind of wave
wave	has propagation direction
harmonic motion	has amplitude
	has period
	has synonym periodic motion
physical process	has domain physics

Kinds of longitudinal wave :

• sound wave in gas (3 facts) - A longitudinal wave propagated through a gas as a pattern of alternating high and low pressure.