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If humans cannot see ultraviolet waves, how can ultraviolet light be used to gather evidence of a crime?

A
Ultraviolet light detects the presence of radioactive substances.
B
Ultraviolet light shows cold areas as blue and warm areas as red.
C
Ultraviolet light causes substances to fluoresce and give off visible light.
D
Ultraviolet light transmits information to AM and FM radio receivers.
2
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When light bends as it passes from one transparent object to another, the light is ________.Which best completes the statement?

A
absorbed
B
reflected
C
refracted
D
bounced
3

Which part of the electromagnetic spectrum is necessary for the sense of sight in humans?

A
radio waves
B
gamma rays
C
infrared light
D
visible light
4

Prisms separate ________ light, such as that from the Sun, by wavelength.Which best completes the statement?

A
ultraviolet
B
white
C
infrared
D
black
5

A museum sets up a display of fluorescent minerals. Which best describes how electromagnetic waves can be used to enhance the display?

A
Infrared light shining on the minerals will cause them to give off visible light.
B
Visible light shining on the minerals will cause them to give off infrared light.
C
Ultraviolet light shining on the minerals will cause them to give off visible light.
D
Visible light shining on the minerals will cause them to give off ultraviolet light.
6

Which part of the electromagnetic spectrum has the longest wavelengths?

A
radio waves
B
gamma rays
C
infrared light
D
ultraviolet light
7

After the 1600s, how did observations of light being refracted change the way most scientists thought about light?

A
They no longer believed that light acted as waves.
B
They began to believe that light acted as waves.
C
They no longer believed that light acted as particles.
D
They began to believe that light acted as particles.
8

Green plants need light in order to survive. Structures in the leaves absorb light, which in turn, helps plants make their own food.Under which color of light will plants be least likely to make food?

A
red
B
blue
C
orange
D
green
9

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.
10

Which object absorbs the most visible light?

a
a clear bowl
a
a white rock
a
a black t-shirt
a
a red apple
11

Some snakes have special sensory organs that detect the infrared region of the electromagnetic spectrum. Compared with human vision, these snakes can sense electromagnetic waves that have

a
a lower frequency and a shorter wavelength.
a
a higher frequency and a longer wavelength.
a
a lower frequency and a longer wavelength.
a
a higher frequency and a shorter wavelength.
12

most likely

Question illustration
a
a window
a
a mirror
a
a plaster wall
a
a steel beam
13

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.”
14

Kamala made a table to describe parts of the electromagnetic spectrum.What mistake did Kamala make?

Question illustration
A
Gamma rays should have a very high frequency, not a very low frequency.
B
Visible light should have a low frequency and a long wavelength.
C
Infrared light should have a short wavelength, not a long wavelength.
D
Microwaves should have a high frequency and a short wavelength.
15

Which three types of electromagnetic waves have longer wavelengths than the waves that make up visible light?

r
radio waves, gamma rays, X-rays
g
gamma rays, infrared light, X-rays
m
microwaves, radio waves, infrared light
i
infrared light, ultraviolet light, microwaves
16

Quentin made a table to summarize uses of electromagnetic waves.

Question illustration
m
music broadcasts
l
luggage inspections
n
night-vision goggles
d
digital photographs
17

Which part of the electromagnetic spectrum is typically used to make images based on the temperatures of objects?

X
X-rays
r
radio waves
i
infrared light
v
visible light
18

Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells?

g
gamma rays
v
visible light
i
infrared light
m
microwaves
19

Which describes the changes in visible light moving from red to violet?

T
The energy increases.
T
The speed decreases.
T
The wavelength increases.
T
The frequency decreases.
20

Which two types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light?

r
radio waves and infrared light
v
visible light and X-rays
m
microwaves and gamma rays
g
gamma rays and X-rays

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