AnswersPARTA - EOP PGCPS BIOGEOCHEM CR FALL2026 - 798113The Electromagnetic Spectrum

Properties of Light Answers

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1
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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.
2
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most likely

g
gamma rays
m
microwaves
r
radio waves
X
X-rays
3

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
4

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

Question illustration
X
X-rays should have a low frequency and a long wavelength.
I
Infrared light should have a high frequency, not a low frequency.
R
Radio waves should have a very high frequency and a very short wavelength.
U
Ultraviolet light should have a short wavelength, not a long wavelength.
5

What characteristic do all parts of the electromagnetic spectrum share?

A
They have the same wavelength.
B
They have the same frequency.
C
They interact in the same way with any matter.
D
They travel at the same speed through empty space.
6

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
7

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.
8

How can electromagnetic waves be used to fight a forest fire?

A
Gamma ray images can show hot spots as radioactive areas.
B
Ultraviolet images can show hot spots as fluorescent areas.
C
X-ray images can show hot spots as white areas.
D
Infrared images can show hot spots as red areas.
9

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
10

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
11

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.
12

Quentin made a table to summarize uses of electromagnetic waves.

Question illustration
A
music broadcasts
B
luggage inspections
C
night-vision goggles
D
digital photographs
13

A pet lizard and its shelter must be kept warm. What type of electromagnetic waves would most likely be used?

A
gamma rays
B
infrared light
C
ultraviolet light
D
microwaves
14

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.
B
a higher frequency and a longer wavelength.
C
a lower frequency and a longer wavelength.
D
a higher frequency and a shorter wavelength.
15

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

A
radio waves, gamma rays, X-rays
B
gamma rays, infrared light, X-rays
C
microwaves, radio waves, infrared light
D
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 describes the changes in visible light moving from red to violet?

A
The energy increases.
B
The speed decreases.
C
The wavelength increases.
D
The frequency decreases.
18

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

A
radio waves and infrared light
B
visible light and X-rays
C
microwaves and gamma rays
D
gamma rays and X-rays
19

Which part of the electromagnetic spectrum is nearest to radio waves?

A
X-rays
B
microwaves
C
gamma rays
D
ultraviolet light
20

The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct?

A
X-rays have lower energy than gamma rays because X-rays have higher frequencies.
B
X-rays have lower energy than gamma rays because X-rays have shorter wavelengths.
C
Visible light has higher energy than infrared light because visible light has longer wavelengths.
D
Visible light has higher energy than infrared light because visible light has higher frequencies.

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