AnswersFL-2002070-MJ Comprehensive Science 2Earth's Energy Budget

The Electromagnetic Spectrum Answers

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1
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A wave is traveling through X. What can be known about X?

A
It is empty space.
B
It is any medium.
C
It is a solid.
D
It is a liquid.
2
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Why do waves move faster at higher temperatures and in a solid phase?

A
There is more energy and the particles are farther apart.
B
There is less energy and the particles are closer together.
C
There is less energy and the particles are farther apart.
D
There is more energy and the particles are closer together.
3

A high amplitude sound wave can best be compared to a

A
short hill.
B
tall hill.
C
tightly coiled spring.
D
stretched-out spring.
4

Which best describes vibration?

A
the distance traveled per unit in time
B
the action of moving back and forth quickly and steadily
C
the distance between one compression and the compression next to it
D
the action of moving through a material or substance
5

Allison wants to calculate the speed of a sound wave.

A
distance traveled / amplitude
B
number of wavelengths / amplitude
C
number of wavelengths / time
D
distance traveled / time
6

Which refers to the density of the medium’s particles at the compression of a sound wave?

A
amplitude
B
pitch
C
volume
D
wavelength
7

Sound waves move the slowest through which medium?

A
water
B
ice
C
air
D
wood
8

Sound waves move the fastest through which medium?

A
water at high temperatures
B
water at low temperatures
C
air at high temperatures
D
air at low temperatures
9

In which part of the wave are the particles of the medium closer together?

A
rarefactions
B
compressions
C
solids
D
liquids
10

Which of these would most likely cause a sound wave?

A
cookies baking
B
milk standing in the bottle
C
a spoon hitting the side of a bowl while mixing
D
butter melting
11

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

A
X-rays
B
microwaves
C
gamma rays
D
ultraviolet light
12

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
13

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.
14

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.
15

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.
16

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
17

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
18

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.
19

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
20

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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