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Question
Explain the two ways by which the pitch of the sound generated by a stretched string can be changed.
Solution
- A string vibrates at a specific fundamental frequency. It is possible to make pitches with multiple frequencies with the same string.
- The length and diameter of the string determine its frequency.
- Changing the length of a string causes it to vibrate at a different frequency. Shorter strings have a greater frequency, which leads to a higher pitch.
- When a musician presses her finger against a string, she reduces its length. The more fingers she puts to the string, the shorter it becomes, and the higher the pitch.
Thick strings with a big diameter vibrate slower and at a lower frequency than thin ones.
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