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Review Sound And Light
Test Description: Review sound and light
Instructions: Answer all questions to get your test result.
1) We see different colors because of different .....
A
absorptions
B
wavelengths
C
frequencies
D
diffractions
2) sound waves travel
A
away from their source
B
in a perpendicular line
C
toward their source
D
any way they want
3) the reason we see objects outside a beam is because of
A
compression
B
refraction
C
reflection
D
absorption
4) all sound needs
A
vibration
B
water
C
vacuum
D
empty space
5) If your friend has blue eyes, we say that this part of her eye is blue
A
cornea
B
iris
C
pupil
D
lens
6) this is why we see strawberries as the color red
A
blue and yellow are reflected
B
all colors are absorbed
C
red is absorbed
D
red is reflected
7) You notice that a piece of wax paper over your book allows you to see some light, but not the picture. The wax paper is
A
smooth
B
translucent
C
transparent
D
opaque
8) which of the following would reflect light the best?
A
a carpet
B
glass
C
grass
D
a sidewalk
9) as light moves away from a source it gets....
A
dimmer
B
brighter
C
more yellow
D
straighter
10) which statement about a sound wave is true?
A
they only exist if you hear them
B
they are longitudinal waves
C
air moves with them
D
they need a vacuum
*select an answer for all questions
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