Multiple choice

Sound waves cannot travel through

  1. vacuum

  2. liquids

  3. solids

  4. gases
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sound waves are mechanical waves that require a physical medium (solid, liquid, or gas) to propagate. The particles in the medium vibrate and transfer energy through collisions. A vacuum is the absence of matter, so there are no particles to vibrate and transmit the sound wave. This is why sound cannot travel through space.

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