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12 Cards in this Set
- Front
- Back
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translucent
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light rays can pass though, but they stop going in straight lines and scatter many directions
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opaque
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light can’t pass through it at all
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Sound is made by ______________
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vibrations
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sound reflection
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echo
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An example of sound absorption
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the acoustic tiles in the music room
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pitch
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How fast or slow the vibrations are
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The_____________ the vibration, the higher the pitch.
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faster
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The ____________ the vibration, the lower the pitch.
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slower
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electrical energy
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the flow of electrons between atoms
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circuit
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a complete loop that electrons flow though
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To make a simple circuit you must have:
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light bulb, wires, battery
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sound needs ______________ or a medium to travel
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molecules
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