PIRA Classification: 3A70.15
Description: A small mass is connected to a spring, which hangs from a stand. The spring is extended and released. The first mode is that of simple harmonic motion. After a few seconds, the mass swings as a simple pendulum and does not 'bounce' up and down. Over time, the motion switches between modes.
Special Instructions: Don't extend the spring too far.
Condition: Ok
Setup time: 1 minute
Safety Issues: None