Science Review

Sound is caused by? 

• force
• vibrations
• instruments

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

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What is volume?

• how high or low a sound is
• the loudness or softness of a sound
• the number of vibrations per second
• vibrations

What medium does sound travel through slowest?

• gas
• solid
• liquid
• trees

Tags

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High pitches are produced by objects vibrating _______________.

• quickly
• slowly

Sound travels in which direction?

• down
• forward 
• up
• all directions

Tags

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If a sound bounces back it is called ______________.

• frequency
• sound
• pitch
• an echo

Tags

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Light bounces when it is 

• reflected
• absorbed
• refracted

Tags

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Light bends when it is 

• refracted
• reflected
• absorbed

Tags

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