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20 Cards in this Set
- Front
- Back
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How does sound travel?
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Sound travels through the aire waves.
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How does sound travel through the air?
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in sound waves
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When are waves created?
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when molecules of an object move
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What type of wave are sound waves?
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longitudinal wave
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How do you make a sound louder?
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you have to amplify it, or cause more air to be pushed back and forth.
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Why does a hammer make a loud noise when you hammer a nail into the wall?
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it vibrates the wall around the place where you are hammering the nail.
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What does the phrase "conductor of sound" mean?
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a material that sound can pass through.
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Why are solids the best conductors of sounds?
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because the molecules in solids are arranged closer together than in gases or liquids.
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Echo
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sound that bounces back,
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Frequency
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number of sound waves per second.
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Inner ear
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part of the ear that sends signals to the brain.
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Larynx
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voice box region of the throat
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Middle Ear
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part of the ear that makes vibraitons bigger
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Outer Ear
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part of the ear that you can see.
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Pitch
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how low or high a note sounds
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Sound
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wave that travels through the air.
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Vibration
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back and forth movement
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Vocal Cords
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elastic bands in the throat that produce sounds.
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Eardrum
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part of the outer ear that vibrates when sound waves hit it.
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Name the parts of the ear?
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eardrum, inner ear, middle ear, and out ear and larynx.
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