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Electromagnetic Spectrum

Total questions: 100

Worksheet time: 8hrs 20mins

Name
Class
Date
1.
Which electromagnetic waves have the highest frequencies and the shortest wavelengths?
a)
microwaves
b)
visible light
c)
gamma rays
2.
Which electromagnetic waves are used in ovens and cell phone communications?
a)
Infrared rays
b)
ultraviolet rays
c)
microwaves
3.
Which type of waves are used in broadcasting?
a)
radio waves
b)
infrared rays
c)
x-rays
4.
Electromagnetic waves that help your body produce vitamin D are called?
a)
ultraviolet rays
b)
x-rays
c)
gamma rays
5.
For waves in any medium, as the wavelength decreases, what happens to the frequency?
a)
It also decrease
b)
It stays the same
c)
It increases
6.
Which of the following has wavelengths longer than microwaves?
a)
Infrared waves
b)
Radio waves
c)
Visible light
7.
Which electromagnetic waves allow us to diagnose & treat cancer?
a)
Gamma rays
b)
X-rays
c)
Ultraviolet rays
8.
Which of the following has frequencies higher than ultraviolet rays?
a)
visible light
b)
infrared rays
c)
x-rays
9.
Which of the following lists the electromagnetic waves in order of increasing wavelength?
a)
X-rays, visible light, radio waves
b)
gamma rays, microwaves, UV rays
c)
infrared rays, radio waves, x-rays
10.
Which electromagnetic waves are used in devices such as heat lamps & TV remote controls?
a)
ultraviolet rays
b)
microwaves
c)
infrared rays
11.
Which of the following lists the electromagnetic waves in order of decreasing frequency?
a)
X-rays, microwaves, infrared rays
b)
UV rays, visible light, x-rays
c)
infrared rays, microwaves, radio waves
12.
Radar uses which type of electromagnetic waves to detect objects & measure their distance and speed?
a)
microwaves
b)
infrared rays
c)
x-rays
13.

Longest Wavelengths and Lowest Frequencies?

a)

Visible Light

b)

Microwaves

c)

X-Rays

d)

Radio Waves

14.

Shorter Waves have ____Energy,Longer Waves___Energy?

a)

Lower,Higher

b)

Higher,Lower

15.

Visible Light?

a)

Human Eyes Can't Detect and Have Higher Frequency than Infrared.

b)

Human Eyes Can detect and are Have a Higher frequency than Infrared.

c)

Human Eyes Can't Detect and Have lower Frequency than Infrared

d)

Human Can detect and have higher Frequency than Radio waves.

16.

Microwaves ?

a)

Shorter Wavelength than X-rays and lower Frequency than X-ray.

b)

Longer Wavelength than Radio Waves and Higher Frequency than Radio waves.

c)

Shorter Wavelength than Radio Waves, Higher Frequency than Radio Waves.

17.

X-Rays?

a)

Have shorter wavelengths and Higher Frequency than Gamma Rays.

b)

Have longer wavelengths and Higher Frequency than Ultra Violet.

c)

Have shorter wavelengths and Higher Frequency than Ultra Violet.

18.

Which of the following is an example of a wave with a long wavelength and low frequency?

a)

Gamma rays

b)

Infrared

c)

Radio

d)

Visible light

19.

Which of the following waves have the lowest energy?

a)

Gamma rays

b)

Visible light waves

c)

Radio waves

d)

X rays

20.
Which of the following electromagnetic waves is given off as heat? 
a)
Radio Waves
b)
Infrared Rays
c)
Visible Light
d)
Gamma Rays
21.

How are electromagnetic waves different from other waves?

a)

They have short wavelengths

b)

they transmit energy instead of matter

c)

they can travel through empty space

d)

they can change direction by reflection

22.

Which electromagnetic waves are used in devices such as heat lamps and TV remote controls?

a)

Ultraviolet rays

b)

Infrared Rays

c)

Microwaves

23.

Which section of the electromagnetic spectrum is the ONLY part humans can see?

a)

X-Rays

b)

Gamma Rays

c)

Visible Light

d)

Ultraviolet Rays

24.

Which electromagnetic waves are used by doctors to detect broken bones inside your body?

a)

X-Rays

b)

Gamma Rays

c)

Ultraviolet Rays

d)

Infrared Rays

25.

Which wave has a high frequency, a short wavelength, and high energy?

a)

A

b)

B

c)

Not enough information to determine

26.

Which wave has a low frequency, a long wavelength, and low energy?

a)

A

b)

B

c)

Not enough information to determine

27.
True or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)
a)
true
b)
false
28.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
29.
Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
30.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
31.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
32.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
33.
How are electromagnetic waves different from other waves? 
a)
They have very short wavelengths 
b)
They transmit energy instead of matter 
c)
They can travel through empty space
d)
They can change direction by reflection 
34.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
35.
As the frequency of an electromagnetic wave increases, the amount of energy in that wave...
a)
increases.
b)
decreases.
c)
stays the same.
36.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
37.
The distance between two crests or two troughs of a wave is called:
a)
frequency
b)
amplitud
c)
wavelength
d)
hertz
38.
How much of the electromagnetic spectrum is visible?
a)
All of it
b)
None of it
c)
Most of it
d)
Only a small part
39.

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1.41 × 109 Hz. An

electromagnetic spectrum is shown.

a)

microwaves

b)

Infrared

c)

Visible Light

d)

Gamma Rays

40.

Which statement about electromagnetic waves is correct?

a)

All electromagnetic waves are harmful to people

b)

All electromagnetic waves have the same wavelength

c)

In Vacuum, all electromagnetic waves travels at the same speed

d)

In Vacuum, visible light travels faster than all the other electromagnetic waves

41.

Which of the following regions of electromagnetic spectrum can be used to cook food?

a)

Infrared only

b)

Microwave only

c)

Infrared and Microwave only

d)

No region can be used

42.

Which region of the electromagnetic spectrum is used to communicate with artificial satellites?

a)

Radio waves

b)

Microwaves

c)

Infrared

d)

Visible Light

43.

A lamp is used to sterilize water in an aquarium, what light is used?

a)

Infrared

b)

Red light

c)

Green light

d)

Ultraviolet

44.

Which statement about microwave is correct?

a)

Microwaves travel at approximately 3×108 3\times10^{8\ } m/s

b)

Microwaves are not used to communicate with satellites because they are blocked by clouds

c)

The wavelengths of microwaves are shorter than visible light

d)

The frequencies of microwaves are lower than radio waves

45.

Which statement about optical fibers is correct?

a)

Optical fibers carry microwave signals

b)

Optical fibers cannot be used to transmit television signals

c)

Only visible light is used in optical fibers because only visible light can undergo total internal reflection

d)

Visible light and infrared are used because glass is transparent to these waves

46.

The electromagnetic spectrum is shown in the table below.

a)

Wavelength

b)

Speed

c)

Frequency

d)

Amplitude

47.

Which list shows the parts of the electromagnetic spectrum in order of decreasing wavelength?

a)

γ\gamma rays, X-rays, infrared

b)

Radio waves, ultraviolet, microwaves

c)

Microwaves, infrared, visible light

d)

Ultraviolet, visible light, infrared

48.

Which of the following groups contains only electromagnetic waves?

a)

sound wave, γ−rays\gamma-rays , X-rays

b)

γ−rays\gamma-rays , microwaves, sound waves

c)

Radio waves, infrared waves, γ−rays\gamma-rays

d)

Radio waves, sound waves, microwaves

49.

Which of the following sentences about infrared waves is trus?

a)

They can be used to treat cancerous tumors

b)

They can be used to make image of bones, through the skin

c)

They can be used for cooking

d)

They are used to send communication signals to satellites

50.

Which type of electromagnetic wave is used in remote controls?

a)

Microwaves

b)

Visible light

c)

Ultraviolet

d)

Infrared

51.

A forgery detector is used to check whether bank notes are genuine of counterfeit. A type of electromagnetic radiation is shone onto the banknote which makes special ink in the note glow.

Which type of electromagnetic radiation is shone onto the banknote?

a)

Ultraviolet

b)

Infrared

c)

Visible light

d)

X-rays

52.

In what way are microwaves different from ultraviolet waves?

a)

Ultraviolet waves travel faster than microwaves in a vacuum

b)

Microwaves have a longer wavelength than ultraviolet waves

c)

Microwaves have a higher frequency than ultraviolet waves

d)

Microwaves are longitudinal while ultraviolet waves are transverse

53.

Ultraviolet waves have an order of magnitude of the frequency of the longest-wavelength of 10x10^x Hz. What is the value of x?

a)

19

b)

17

c)

16

d)

13

54.

An electromagnetic wave in free space has a frequency of 2.5×1014 Hz2.5\times10^{14}\ Hz .

Which region of the electromagnetic spectrum includes this frequency?

a)

infrared

b)

microwave

c)

Ultraviolet

d)

X-ray

55.

Which radiation could consist of waves of wavelength 0.5 nm?

a)

𝛾-rays 

b)

ultraviolet 

c)

visible light

d)

X-rays

56.

The diagram shows the principal regions of the electromagnetic spectrum, with some details labeled. The diagram is not to scale.

What is a typical order of magnitude of the wavelength of the radiation in region Q?

a)

10−7 m10^{-7}\ m

b)

10−5 m10^{-5}\ m

c)

10−2 m10^{-2}\ m

d)

100 m10^0\ m

57.

Which statement about electromagnetic waves is correct?

a)

A wave of wavelength 5.0×10−6 m5.0\times10^{-6}\ m is invisible to the human eye.

b)

They can all travel at different speeds in free space.

c)

They cannot be polarized.

d)

They consist of vibrating atoms. 

58.

Which list of regions of the electromagnetic spectrum is in order of increasing wavelength from left to right?

a)

Gamma-ray → ultraviolet → infrared

b)

Infrared → microwave → ultraviolet

c)

Microwave → X-ray → infrared

d)

X-ray → ultraviolet → gamma-ray

59.

Brief pulses of red, blue and green light are emitted from the Sun at the same time.

The pulses travel the same distance to reach Mars. Assume that the pulses travel in a vacuum for the full duration of their journey.

In which order would these pulses of light arrive at Mars?

a)

all arrive at the same time

b)

blue first, then green, then red

c)

red first, then blue, then green

d)

red first, then green, then blue

60.

The table contains descriptions and examples of waves. 

Which row is correct? 

a)

description of wave = oscillations are parallel to the direction of energy transfer

Example = gamma rays

b)

description of wave = oscillations are parallel to the direction of energy transfer

Example = ultraviolet rays

c)

description of wave = oscillations are perpendicular to the direction of energy transfer

Example = sound waves

d)

description of wave = oscillations are perpendicular to the direction of energy transfer

Example = X-rays

61.

What is the order of magnitude of the wavelengths of microwaves and X-rays?

a)

Wavelength of microwaves / m = 10−610^{-6}

wavelength of X-rays / m = 10310^3

b)

Wavelength of microwaves / m = 10−610^{-6}

wavelength of X-rays / m = 10310^3

c)

Wavelength of microwaves / m = 10−610^{-6}

wavelength of X-rays / m = 10−1010^{-10}

d)

Wavelength of microwaves / m = 10−210^{-2}

wavelength of X-rays / m = 10−1010^{-10}

62.

Which EM waves have the longest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

63.

Which EM waves have the shortest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

64.

Which EM waves are invisible? (more than one correct answer)

a)

radio

b)

visible

c)

ultraviolet

d)

gamma rays

65.

Which EM waves are have a SHORTER wavelength than visible?

a)

radio

b)

none

c)

infrared

d)

x-rays

66.

Which EM waves are have the lowest frequency?

a)

radio

b)

none

c)

infrared

d)

x-rays

67.

Which EM waves are have the highest energy & are the most dangerous?

a)

radio

b)

gamma rays

c)

infrared

d)

x-rays

68.

Which color waves have the lowest frequency?

a)

red

b)

yellow

c)

green

d)

violet

69.

Which color waves have the shortest wavelength?

a)

red

b)

yellow

c)

green

d)

violet

70.

What happens to frequency when wavelength decreases?

a)

stays the same

b)

decreases

c)

increases

d)

There is no relationship between wavelength & frequency.

71.

Which type of electromagnetic wave travels fastest through a vacuum?

a)

radio

b)

gamma rays

c)

visible light

d)

They all travel at the same speed.

72.

The diagram shows a person observing a thunderstorm located several kilometers away. The person hears the thunder several seconds after seeing the lightning. Which statement accurately explains the difference in observations of sound and light by the observer?

 

a)

Human eyes see light faster than their ears can hear sound.

b)

The medium the waves are traveling through is different for each type of wave.

c)

Light waves travel faster than sound waves.

d)

Sound waves travel faster than light waves.

73.

The picture below shows a ringing bell inside a vacuum jar. As air is pumped from the vacuum jar, the sound level of the ringing bell will decrease until it can no longer be heard.

This happens because air must be present in the jar in order for

a)

sound to be transferred

b)

electricity to flow through the wires

c)

the rubber to seal the jar

d)

the bell clanger to vibrate

74.

The diagram below shows a light ray. In this diagram, the light ray is being

a)

 transmitted

b)

absorbed

c)

reflected

d)

refracted

75.

The diagram below shows a pencil in a glass of water. When viewed from the side, the pencil appears to be broken. What process causes this to happen?

a)

absorption

b)

evaporation

c)

reflection

d)

refraction

76.

What do electromagnetic waves NOT need to transfer energy?

a)

matter

b)

speed

c)

wavelength

d)

frequency

77.

Which of the following has the shortest wavelength?

a)

microwaves

b)

UV rays

c)

Infrared

d)

the color blue

78.

Which of the following has the most energy?

a)

Red

b)

Blue

c)

Green

d)

Violet

79.

Which of the following has the most energy?

a)

X-rays

b)

The color green

c)

Microwaves

d)

ultraviolet

80.

Which of the following has the longest wavelength?

a)

Infrared

b)

The color Indigo

c)

gamma rays

d)

TV

81.

Which of the following has the least amount of energy?

a)

UV rays

b)

The color yellow

c)

infrared

d)

Gamma rays

82.

Which of the following has the shortest wavelength?

a)

Gamma rays

b)

The color blue

c)

AM radio

d)

Infrared

83.

Which of the following has the highest frequency?

a)

TV

b)

Microwaves

c)

the color indigo

d)

ultraviolet rays

84.

Which of the following would have the lowest frequency?

a)

infrared

b)

The color red

c)

X-rays

d)

TV

85.

Which of the following has the lowest energy?

a)

The color yellow

b)

The color blue

c)

The color indigo

d)

The color orange

86.

Which of the following has the lowest frequency?

a)

The color blue

b)

The color green

c)

The color yellow

d)

The color violet

87.
A certain photon of light has a wavelength of 4.22x10-7nm. What is the frequency? (v=c/λ)
a)
7.11x1014 Hz
b)
7.11Hz
c)
1.41x10-15
d)
-1.41x1015
88.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
89.
Select the correct order of waves on the EMS 
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
90.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
91.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
92.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
93.
As the frequency of an electromagnetic wave increases, the amount of energy in that wave...
a)
increases.
b)
decreases.
c)
stays the same.
94.
The height of the wave is known as the _____________.
a)
amplitude
b)
crest
c)
trough
d)
wavelength
95.
The blue section of the wave is measuring _________________.
a)
wavelength
b)
crest
c)
trough
d)
amplitude 
96.
Light behaves like both a particle and a ______.
a)
Mass
b)
Wave
c)
Current
97.
What happens to the energy of a photon as the frequency of the wave increases? 
a)
The energy increases
b)
The energy decreases
c)
The energy stays the same 
98.
Certain blue lights have a frequencey of 6.91x1014Hz. What is the wavelength? (λ=c/v)
a)
4.34x1021
b)
4.34x10-21
c)
4.34x10-7
d)
2.07x1023
99.
A light has a wavelength of 5.06x10-7m. What is the frequency of the light? What is the color of light? (v=c/λ)
a)
16.87Hz, Red
b)
5.93Hz, Orange
c)
5.93x10-14Hz, Blue
d)
5.93x1014Hz, Green
100.

Electromagnetic waves all have the same __________ and _______________.

a)

wavelength and speed

b)

speed and amplitude

c)

Frequency and amplitude

d)

Amplitude and wavelength

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