Unit D

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Unit D

• Chapter 8 Sound

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What causes sound?
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• Sound is caused by a vibration.

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Which makes a sound?
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Guitar
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What is pitch?
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• How high or how low a sound is.

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Which makes a high sound?
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bird
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Which makes a low sound?
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Cow
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What is volume?
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• How loud or how soft a sound is.

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Which makes a loud sound?
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lion
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Which makes a soft sound?
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squirrel
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Which do you use to hear?
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The ear
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Look at the object. Tell about what vibrates to
make a sound?
Banjo
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• The banjo has strings that vibrate to make sound.

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Look at the object. Tell about what vibrates to
make sound?
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• The flute makes sound by the air vibrating

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Resources

• www.reef-audio.com
• irishmusicalinstruments.com
• www.discovertheguitar.co.uk
• www.infovisual.info
• www.nlm.nih.gov
• www.smm.org