When a longitudinal wave travels through a medium, what is transported through that medium?

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1. When a longitudinal wave travels through a medium, what is transported through that medium?

The material of the medium itself

Energy, without any net transport of matter

Both matter and energy together in equal measure

Neither matter nor energy

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A longitudinal wave, like sound, transports energy through a medium. The medium’s particles oscillate about fixed positions; they are not carried along with the wave.