Mini-Quiz: Overview of Sound Waves

1. Why doesn't sound travel through a vacuum?

   Sound is a waveform in matter, and there is no matter in a vacuumThat is correct. You must be a sound Champion. Vacuums absorb most of the soundSorry, not correct. Try another button. It does travel in space, as verified on Star TrekGood try, but not right. Select another answer.

2. How is a sound wave different than a water wave?

   Sound does not travel through waterSorry, not correct. Try another button. Water waves have a wavelength, while sound waves don'tOops! Wrong answer. Re-read the question and try again. A water wave is a transverse wave, while sound is a compression waveCorrect. You are doing a good job!

3. What happens when sound hits a thin membrane?

   It causes the membrane to vibrateThat is correct. You must be a sound Champion. The membrane reflects most of the soundOops! Wrong answer. Re-read the question and try again. The amplitude of the sound increasesGood try, but not right. Select another answer.

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