Problem: Based on the information presented in the introduction of this problem, what is a sound wave?1) Propagation of sound particles that are different from the particles that comprise the medium.2) Propagation of energy that does not require a medium.3) Propagation of pressure fluctuations in a medium.4) Propagation of energy that passes through empty spaces between the particles that comprise the medium.

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Sound waves are propagated through the displacement of particles in the direction a wave travels. The displacement creates a sequence of compression and rarefactions in the medium. 

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Problem Details

Based on the information presented in the introduction of this problem, what is a sound wave?

1) Propagation of sound particles that are different from the particles that comprise the medium.

2) Propagation of energy that does not require a medium.

3) Propagation of pressure fluctuations in a medium.

4) Propagation of energy that passes through empty spaces between the particles that comprise the medium.

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