can you hear it? samuel dupont 2009 light heat sound electrical motion samuel dupont 2009
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Sound EnergyCan you hear it?
Samuel DuPont 2009
Review – 5 Forms of Energy? Light Heat Sound
Electrical Motion
Samuel DuPont 2009
What is Sound?
Sound is caused by motion of air Vibrations
The air moves in waves Sound Waves
Similar to “Energy of Motion” Moving air
Samuel DuPont 2009
Vibrations and Pitch
A Sound Wave Length of the Wave (Wavelength)▪ Pitch
Amplitude▪ How loud it is
Samuel DuPont 2009
Vibrations and Pitch
Wavelength determines Pitch
Low Pitch (Bass) High Pitch (Treble)
Samuel DuPont 2009
When we combine all the sounds together…
We get a full sound wave
Samuel DuPont 2009
How do we make sound?
We make Vibrations Smack our hands together Hit the desk
Samuel DuPont 2009
Lets Experiment!
Vibrating Rulers Shorter makes higher pitch
Rubber bands Stretching makes higher pitch
Acoustic Guitar
Samuel DuPont 2009
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