KS3 Physics - Sound

A collection of interactive whiteboard lesson starters aimed KS3/4 physics students showing the different effects of sound.

Using high speed camera technology Trevor Cox, professor of acoustics at the University of Salford, conducts experiments in sound, starting with what happens when you slow down rubbing the rim of a glass of water to 80 times less than normal speed.

He moves on to demonstrating the effect of a tuning fork, a triangle, a cymbal and a guitar as well as the impact of sound on a soap bubble, burning candles and a wine glass.

Using an oscilloscope Trevor then shows the difference in frequencies produced by different octaves played on a saxophone.

The 'confusaphone' shows what happens when your left and right hearing is mixed up and he examines the effect of a sonic boom created by a cracking whip.

Finally Trevor examines the effect of echo and the varying sounds we can create with our own bodies.