The frequency ratio of two tones is called an interval. These
intervals have special names in music. As a result, the experiment
can be more easily understood by students, if the terms are known
from music class, at any case (at the very least) they should know
the C-major scale.
With a tensed string the string lengths behave opposite to the
tone pitches (frequencies) of the notes produced. As a result, the
interval of notes can be determined from the ratio of the string
In the experiment a monochord is used, which is a resonator with
two tense strings, whose pitch can be changed through "bridges"
placed under them. Both strings are at first tightened so that the
same note is created, a bridge is placed under one string, in order
to adjust the desired interval between the two strings, and the
corresponding string length is measured.
- Simple and clear setup
- Achievement of an elemental learning objective with little