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18 terms

Ch. 7 Sound and Light

STUDY
PLAY
Sound
Like heat, ____________ is a form of energy and travels in waves.
Vibrates
All the sounds you hear are made when matter _______________.
Directions
Sound waves move in all __________________.
Reflected
We see objects because light is _________________ from them.
Photons
Light is made up of these bundles of energy.
Light
Travels in straight lines and has properties of both particles and waves.
Waves
Light _________ travel fastest through empty space and travel faster than anything else.
Visible Spectrum
The band of colors that make up white light.
ROYGBIV
red-orange-yellow-green-blue-indigo-violet
Plane mirror
a flat and smooth mirror
Concave mirror
a mirror that curves inward
Convex mirror
a mirror that curves outward
Refraction
the bending of a light wave as it moves through a material
Concave lens
lens on these glasses is for nearsighted people
Matter
sound can only be heard when it travels through this
Energy
Light is a form of __________ that can be seen.
Faster
Light travels ____________ than sound.
Straight
Light travels in ___________ lines.