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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
frequencies
B
diffractions
C
wavelengths
D
absorptions
2) sound waves travel
A
toward their source
B
away from their source
C
any way they want
D
in a perpendicular line
3) the reason we see objects outside a beam is because of
A
refraction
B
reflection
C
absorption
D
compression
4) all sound needs
A
empty space
B
water
C
vacuum
D
vibration
5) If your friend has blue eyes, we say that this part of her eye is blue
A
lens
B
pupil
C
cornea
D
iris
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 reflected
D
red is absorbed
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
translucent
B
transparent
C
smooth
D
opaque
8) which of the following would reflect light the best?
A
glass
B
a carpet
C
grass
D
a sidewalk
9) as light moves away from a source it gets....
A
straighter
B
brighter
C
dimmer
D
more yellow
10) which statement about a sound wave is true?
A
they are longitudinal waves
B
they only exist if you hear them
C
they need a vacuum
D
air moves with them
*select an answer for all questions
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