Oct 11, 2012
This is a follow-up post on coupled oscillators.
In this video (2 mass-spring system equivalent) the low frequency and high frequency normal modes are shown.
The way to achieve these frequencies is by varying the tension in the string supporting the table that the metronomes are on.
By increasing the tension [by moving the supporting blocks further away], the high frequency normal mode was set up.
In contrast, lowering the tension [by moving the supporting blocks closer], the low frequency normal mode was set up.
Very simply, yet revealing about coupled oscillators!