AnswersReed Fall 2026 Physical Science 2nd Semester 7th HourThe Electromagnetic Spectrum

The Electromagnetic Spectrum Answers

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1
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Which part of the electromagnetic spectrum is typically used to make images based on the temperatures of objects?

A
X-rays
B
radio waves
C
infrared light
D
visible light
2
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3

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

A
X-rays
B
microwaves
C
gamma rays
D
ultraviolet light
4

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
5

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
6

A veterinarian thinks that a dog has swallowed a key ring. Which types of electromagnetic waves is the doctor most likely to use to check the dog?

A
gamma rays
B
microwaves
C
radio waves
D
X-rays
7

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.
8

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.
9

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
10

Someone places a chocolate bar near a working radar set that is used to locate ships and airplanes. Which best describes what is likely to happen to the chocolate bar?

A
It changes color as it absorbs visible light from the radar set.
B
It softens and melts as it absorbs microwaves from the radar set.
C
It becomes radioactive after it absorbs gamma rays from the radar set.
D
It begins to fluoresce after it absorbs ultraviolet light from the radar set.

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The Electromagnetic Spectrum

The Electromagnetic Spectrum Answers — Reed Fall…