Can you hear it? Samuel DuPont 2009 Light Heat Sound Electrical Motion Samuel DuPont 2009.

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Sound Energy Can you hear it? Samuel DuPont 2009

Transcript of Can you hear it? Samuel DuPont 2009 Light Heat Sound Electrical Motion Samuel DuPont 2009.

Page 1: Can you hear it? Samuel DuPont 2009  Light  Heat  Sound  Electrical  Motion Samuel DuPont 2009.

Sound EnergyCan you hear it?

Samuel DuPont 2009

Page 2: Can you hear it? Samuel DuPont 2009  Light  Heat  Sound  Electrical  Motion Samuel DuPont 2009.

Review – 5 Forms of Energy? Light Heat Sound

Electrical Motion

Samuel DuPont 2009

Page 3: Can you hear it? Samuel DuPont 2009  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

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Vibrations and Pitch

A Sound Wave Length of the Wave (Wavelength)▪ Pitch

Amplitude▪ How loud it is

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Vibrations and Pitch

Wavelength determines Pitch

Low Pitch (Bass) High Pitch (Treble)

Samuel DuPont 2009

Page 6: Can you hear it? Samuel DuPont 2009  Light  Heat  Sound  Electrical  Motion Samuel DuPont 2009.

When we combine all the sounds together…

We get a full sound wave

Samuel DuPont 2009

Page 7: Can you hear it? Samuel DuPont 2009  Light  Heat  Sound  Electrical  Motion Samuel DuPont 2009.

How do we make sound?

We make Vibrations Smack our hands together Hit the desk

Samuel DuPont 2009

Page 8: Can you hear it? Samuel DuPont 2009  Light  Heat  Sound  Electrical  Motion Samuel DuPont 2009.

Lets Experiment!

Vibrating Rulers Shorter makes higher pitch

Rubber bands Stretching makes higher pitch

Acoustic Guitar

Samuel DuPont 2009