Measuring Music

We use a sounding board called a sonometer to investigate how the pitch of sound changes when the length of wire being plucked changes. We change the position of a moveable bridge to change the length of the wire and discover that different notes are mathematically related. Physics - Waves - Learning Points. The notes of a standard musical scale have a mathematical relationship based on exact ratios. A Twig Experiment Film. Let students experience real experiments in lab conditions anywhere, from setup, method all the way through to analysis and real-world application.