7
QuizMultiple Choice

Waves and Sound — Test

Question 7 • Physics

A guitar string is plucked. What best describes the formation and transmission of the sound wave?

Answer
A
The string vibrates the surrounding air, which produces a longitudinal wave.
B
The string vibrates the surrounding air, which produces a transverse wave.
C
The string produces a transverse wave that travels without a medium.
D
The string produces a longitudinal wave that travels without a medium.

Explanation

When plucked, the guitar string vibrates and makes nearby air molecules vibrate. Those vibrations travel through the air as a longitudinal sound wave, with regions of compression and rarefaction. Sound needs a medium such as air, so it does not travel without one.

AI-written and checked against the verified answer.

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