What is Sound?
Light
How Light is Reflected
Vocab
Extra
100
In what direction do sound waves move from a vibrating object?
in all directions
100
Where do light waves travel fastest?
in empty space
100
A _______ lens refracts light waves inward.
convex
100
A curved piece of clear material that refracts light waves
lens
100
The sun is a major source of _______ on earth.
light
200
Sound is produced when matter _________, or moves quickly back and forth.
vibrates
200
What does the visible spectrum make up?
prisms
200
A _____ lens helps correct nearsightedness.
concave
200
a glass with a triangular shape that can seperated white light
prism
200
Sounds grow fainter over distance because the sound waves become ______ the farther they travel from the vibrating object.
weaker
300
Sound travels in __________, which are produced by vibrations.
Waves
300
What is the term for bending of light as it moves from one material to another?
Refraction
300
Three types of mirrors are convex, concave, and _____ .
plane
300
tiny bundles of energy that make up light
photon
300
The visible spectrum is the band of colors seen in a _____ .
rainbow
400
You can only hear sound when it travels through _______ .
air
400
Light travels as a wave in a ______ line.
straight
400
What lens is used to correct a nearsighted eyes?
convex
400
form of energy that can be seen
light
400
Scientists agree that light has properties of both _____ and waves.
particles
500
Sound is a form of _______ .
Energy
500
Name the colors of the visible spectrum
Red, Orange, Yellow, Green, Blue, Indigo, Violet
500
A copy or likeness
image
500
to move rapidly back and forth
vibrate
500
Seeing a flash of lightening before hearing the thunder is evidence that light travels _____ than sound.
faster
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