Science Sound Waves

Sound is produced when something ______________

• Vibrates

• Moves through empty space

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The measure of how high or low a sound(not how quiet or loud) is

• amplitude

• compression

• volume

• pitch

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When Mr. Allen yells his name in a cave, the sound reflects off the walls of the cave and travels back to his ears.  What is this called?

• refraction

• amplitude

• pitch

• echo

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___________ is a device that shows sound waves like a graph, in a sideways view.

• oscilloscope

• thermometer

• barometer

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waves travel through matter and vibrate our eardrums so we can hear.

• Ocean

• Seismic

• Energy

• Sound

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Which is the best description of sound waves?

• Sound waves are very low-frequency radio waves.

• Sound waves are vibrations transmitted through matter.

• Sound waves are rapid changes in magnetic fields.

• Sound waves are rapid changes in the attraction between molecules.

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What happens when you increase the amplitude of a sound?

• it makes the sound louder

• it makes the sound travel faster

• it makes the sound softer

• it changes the pitch or note of the sound

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Sound waves must travel through ___________________.

• air

• a medium

• an outward area

• a short

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Sound has to travel through a ______.

• crest

• medium

• frequency

• box

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The top of the wave is called the...

• Lookout

• Mountain

• Crest

• Trough

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