Multiple choice

Sound cannot travel in

  1. air

  2. vacuum

  3. sea water

  4. iron
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sound is a mechanical wave that requires particles to vibrate and transfer energy. In a vacuum, where there are no particles, sound cannot propagate. This is why sound can travel through solids, liquids, and gases, but not through empty space.

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