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Problem: When a sound wave moves past a point in air, what happens to the density of air at thispoint?1. There is no air after the sound wave passes.2. There is no change in the density of air.3. The air is compressed after the sound wave passes.4. The density of air increases and then decreases as the sound wave passes.

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As the sound wave passes through the air, it disturbs the air molecules/particles.

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Problem Details

When a sound wave moves past a point in air, what happens to the density of air at this
point?
1. There is no air after the sound wave passes.
2. There is no change in the density of air.
3. The air is compressed after the sound wave passes.
4. The density of air increases and then decreases as the sound wave passes.

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