AnswersPBCSD_Grade_Forgiveness_2003310_Physical Science_S2_2022Lab: Newton's Laws of Motion

The Electromagnetic Spectrum Answers

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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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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
3

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
4

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.
5

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

A
gamma rays
B
visible light
C
infrared light
D
microwaves
6

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.
7

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.
8

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
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

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

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