Question

If you made a string instrument, how would a wider diameter of the string influence the sound?

Answer 1

Lower sound frequency.

Answer 2

When the length of a string is changed, it will vibrate with a different frequency. Shorter strings have higher frequency and therefore higher pitch. When a musician presses her finger on a string, she shortens its length. The more fingers she adds to the string, the shorter she makes it, and the higher the pitch will be.