Vibrations

[Ready? We hear many different sounds, everyday
All of the sounds that we hear come through our ears in the same way,
through the air
Do you know why we’re able to speak, make sound?
When I say ready you all say the word 'vibration', ready?
Vi-brat-ion, Vi-brat-ion
My voice is caused by vibrations too
All sounds are caused by vibration
All sounds are caused by vibration
All sounds are caused by vibration
Did you feel the vibration?
Now let’s see if we can recognise some sounds
The sound of an electric mixer is a familiar sound to most of us.]
[Listen to this worksaw
We’ve seen that when a tuning fork is struck, it vibrates.]