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Sound and Light
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_______________________ depends on the number of vibrations per second.
pitch
We measure how loud or soft a sound is in ____________________________.
decibels
Soft materials help _________________________ sound in a room.
absorb
White light is made up of a ______________________ of colors.
spectrum
A glow stick is an example of _____________________________ light.
bioluminescent
___________________________ lightbulbs are very bright, but they get very hot.
halogen
An echo is ____________________________ sound.
reflected
When people speak, the produce _____________________________________ with their vocal cords.
vibrations
A pencil in a glass of water looks broken because the light is ____________________________.
refracted
A frosted window is _________________________.
translucent