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20 Cards in this Set
- Front
- Back
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Things that vibrate quickly have high pitched sounds.
True or False |
TRUE
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Sound waves never travel through matter.
True or False |
FALSE
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Generally an echo occurs when sound bounces off a flat surface.
True or False |
TRUE
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All sounds can be heard by the human ear.
True or False |
FALSE
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The sound in an empty room is usually louder than a room with carpeting, curtains and furniture.
True or False |
TRUE
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_______________ is how loud or soft a sound is.
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intensity
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When you hear a sound your __________ vibrates.
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eardrum
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A decibel measures the _____________ of a sound.
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intensity
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An ________________ occurs when a sound wave strikes a smooth surface and bounces back in the same pattern.
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echo
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The taking in of sound energy by an object is referred to as ________________.
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absorption
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wavelength
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the distance between a point on one wave and the exact point on the next wave
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transmission
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the passing of sound through space
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vibration
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a quick back and forth motion
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frequency
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number of waves in a given period of time
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pitch
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the measure of how high or low a sound is
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What are the three properties of sound waves?
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wavelength, frequency and amplitude
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How do dolphins and bats use sound?
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Echolocation is used to help animals naturally born without sight to help them see.
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Sound is a form of ___________.
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energy
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Intensity measures how _______ or ______ a sound is.
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loud or soft
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When heat, light or sound bounces off an object it is called an ____________
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echo
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