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G2 Ch6 L3 Sound
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What does it mean to VIBRATE?
It means to move BACK AND FORTH very quickly.
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Where do your eardrums send messages to so you know what you hear?
Your brain.
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What is SOUND?
It's ENERGY that's HEARD (when things VIBRATE).
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What is PITCH?
It's how HIGH or LOW a sound is.
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What's this? How do you play it?
It's a HARP. You SNAP/PLUCK the STRINGS.
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What's this? How do you hear it?
It's an ALARM CLOCK. It vibrates the air around it, which vibrates your eardrums.
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What's a SOUND MEDIUM?
It's the MATTER that sound TRAVELS THROUGH.
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What body part do we use to hear?
Eardrums.
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Which MEDIUM does sound travel through the FASTEST?
Solid.
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