Review Sound And Light Question Preview (ID: 14902)


Review Sound And Light. TEACHERS: click here for quick copy question ID numbers.

We see different colors because of different .....
a) wavelengths
b) frequencies
c) absorptions
d) diffractions

sound waves travel
a) away from their source
b) toward their source
c) any way they want
d) in a perpendicular line

the reason we see objects outside a beam is because of
a) absorption
b) reflection
c) refraction
d) compression

all sound needs
a) vibration
b) vacuum
c) water
d) empty space

If your friend has blue eyes, we say that this part of her eye is blue
a) iris
b) cornea
c) pupil
d) lens

this is why we see strawberries as the color red
a) red is reflected
b) red is absorbed
c) blue and yellow are reflected
d) all colors are absorbed

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) opaque
d) smooth

which of the following would reflect light the best?
a) glass
b) a carpet
c) a sidewalk
d) grass

as light moves away from a source it gets....
a) dimmer
b) brighter
c) more yellow
d) straighter

which statement about a sound wave is true?
a) they are longitudinal waves
b) they need a vacuum
c) they only exist if you hear them
d) air moves with them

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