Properties of Light Answers

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1
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T
The glass will feel warmer than the stone after twenty minutes.
T
The stone will feel warmer than the glass after twenty minutes.
T
The glass will reflect all of the light after twenty minutes.
T
The stone will reflect all of the light after twenty minutes.
2
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Which example best illustrates that light behaves like particles?

A
Light bends as it strikes a window.
B
Light bounces off a white cement sidewalk.
C
Light travels in space at a speed of about 3.0 x 108 m/s.
D
Light increases in speed as it moves through matter.
3

What happens when light from the Sun passes through any type of matter?

T
The light slows down.
T
The light speeds up.
M
Most of the light is absorbed.
M
Most of the light is reflected.
4

Which object absorbs the most visible light?

a
a clear bowl
a
a white rock
a
a black t-shirt
a
a red apple
5

Isaac Newton believed that light was made of

w
waves.
p
particles.
d
dust.
g
gravity.
7

Sayid listed some characteristics of waves in a chart. Part of his chart is shown.Which of these would correct Sayid's error?

Question illustration
A
Change the heading of the chart to “Mechanical.”
B
Replace “travel in straight lines” with “move in curved paths.”
C
Add “move due to particles bumping into each other” to the chart.
D
Change “move only through matter” to “move through space and matter.”
8

most likely

L
Light bends around objects.
L
Light bounces off surfaces.
L
Light travels in a curved path.
L
Light is made up of waves.
9

most likely

Question illustration
a
a window
a
a mirror
a
a plaster wall
a
a steel beam
10

Which statement correctly compares the speed of light?

T
The speed of light through space is much greater than 3 x 108 m/s.
T
The speed of light in glass is much greater than 3 x 108 m/s.
T
The speed of light in glass is faster than the speed of light through space.
T
The speed of light in glass is slower than the speed of light through space.

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