Lesson: Chapter 4 — Waves and their applications

4.3.5. Musical instruments 3 of 4 Reset answers

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Question 3

In a wind instrument, what decides the pitch of the note?

A The tension of a string B The area of a skin C The colour of the instrument D The length of the air column

The right answer is the one marked above.

The length of the air column. Covering all the holes of a flute makes the air column longest and the note lowest; opening holes shortens it and raises the pitch.

String tension matters for string instruments, and skin area for percussion.

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