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ELECTROMAGNETIC SPECTRUM

Total questions: 50

Worksheet time: 8mins

Name
Class
Date
1.
True or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)
a)
true
b)
false
2.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
3.
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
4.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
5.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
6.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
7.
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 
8.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
9.
As the frequency of an electromagnetic wave increases, the amount of energy in that wave...
a)
increases.
b)
decreases.
c)
stays the same.
10.
The distance between two crests or two troughs of a wave is called:
a)
frequency
b)
amplitud
c)
wavelength
d)
hertz
11.
The height of the wave from the rest position is known as the _____________.
a)
amplitude
b)
crest
c)
trough
d)
wavelength
12.
What are electromagnetic waves?
a)
sound waves
b)
electric & magnetic fields (energy) that travel through empty space very quickly
c)
Someone's name
d)
things like longitudinal waves
13.
What is the number of waves that pass a point in one second?
a)
Amplitude
b)
Frequency
c)
Period
d)
Wavelength
14.

An electromagnetic wave is made up of which of the following oscillating quantities?

a)

Magnetic field only

b)

Electric and magnetic force

c)

Electric and magnetic field

d)

Electric field only

e)

Magnetic force only

15.

Which of the following part of the electromagnetic spectrum has the highest frequency?

a)

Infrared

b)

Ultraviolet

c)

Red in the visible light spectrum

d)

Violet in the visible light spectrum

16.

Which of these EM waves has the greatest penetrating ability due to its very short wavelength?

a)

Ultraviolet

b)

X-ray

c)

Gamma ray

d)

Microwave

17.

If the energy of an EM wave is directly proportional to its frequency, which of the following has the highest energy?

a)

Radio

b)

Microwave

c)

Infrared

d)

Visible light

18.

Which of the following is the least penetrating wave

a)

gamma rays

b)

UV rays

c)

Infrared rays

d)

X rays

19.

For an electromagnetic wave traveling through a vacuum, what happens to its speed as the frequency increases?

a)

Speed increases

b)

Speed decreases

c)

It depends on the wavelength.

d)

Remains the same

20.

Which of the following sets of EM radiation can harm your body cells?

a)

Gamma ray, microwaves, infrared

b)

Light, ultraviolet, x-ray

c)

Microwaves, ultraviolet, infrared

d)

Ultraviolet, x-ray, gamma ray

21.

The following are correct characteristics of EM waves EXCEPT for_________________.

a)

EM waves are composed of electric and magnetic fields.

b)

The electric and magnetic fields are both perpendicular to the direction of propagation.

c)

All EM waves have the same speed in vacuum.

d)

EM waves of different frequency and wavelength have different wave speed.

22.

Which of the following is true about EM waves?

a)

Light is the only wave that humans can perceive.

b)

Radio waves are used in television broadcast.

c)

Gamma rays have the shortest wavelength.

d)

All of the above.

23.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
24.

Which color has the longest wavelength?

a)

Red

b)

Orange

c)

Yellow

d)

Blue

25.

Which color has the shortest wavelength?

a)

Red

b)

Orange

c)

Yellow

d)

Blue

26.

Which of the following has the electromagnetic waves going from least amount of energy to most amount of energy?

a)

Radio Waves, Infrared, X Rays

b)

Gamma, Infrared, Microwaves

c)

Microwaves, Radio, X Rays

d)

Visible Light, Infrared, Microwaves

27.

Gamma Rays are the _____ energy EM waves as they have the _____ frequency.

a)

Highest , Highest

b)

Shortest, shortest

c)

Longest, lowest

d)

Highest, Shortest

28.

Used for Cooking food. Speaking on mobile phones.

a)

Ultraviolet

b)

Visible light

c)

Microwave

d)

Radio wave

29.

Thermal imaging cameras for the Police and Fire Services

a)

Gamma Ray

b)

Infrared

c)

Microwave

d)

Radio wave

30.

Used to treat skin conditions. Vitamin D3 for the brain.

a)

Gamma Ray

b)

X-ray

c)

Microwave

d)

Ultraviolet

31.

Checking for broken bones. Scanning airport luggage.

a)

Gamma Ray

b)

X-ray

c)

Microwave

d)

Ultraviolet

32.

Radioactive tracers in medicine and leaking underground pipes.

Sterilizing hospital equipment.

a)

Gamma Ray

b)

X-ray

c)

Microwave

d)

Ultraviolet

33.

They all travel at the speed of_____

a)

Light

b)

Sound

c)

Rays

d)

Air

34.

It is a type of wave which can transfer energy through a vacuum.

a)

Electromagnetic

b)

Mechanical

c)

Sound

d)

Water

35.

How are the types of waves arranged on the Electromagnetic Spectrum?

a)

Alphabetically arranged

b)

Increasing frequency

c)

Decreasing frequency

d)

Number of atoms

36.

The following are applications of microwaves, EXCEPT one:

a)

Heat Sources

b)

Satellite

c)

Thermal Imaging

d)

Communications and Radar

37.

What is the energy beyond the violet end of the visible spectrum?

a)

Infrared

b)

X-rays

c)

Gamma Rays

d)

Ultraviolet

38.

What is the main offender in the feeling of destructive effects of the sun’s rage?

a)

Infrared

b)

Visible Light

c)

Ultraviolet

d)

All of the above

39.

______ is the only member of the EM spectrum which can

be seen without special equipment.

a)

Ultraviolet

b)

Visible light

c)

Infrared

d)

X-ray

40.

Used for Cooking food. Speaking on mobile phones.

a)

Ultraviolet

b)

Visible light

c)

Microwave

d)

Radio wave

41.

Thermal imaging cameras for the Police and Fire Services

a)

Gamma Ray

b)

Infrared

c)

Microwave

d)

Radio wave

42.

Used to treat skin conditions. Vitamin D3 for the brain.

a)

Gamma Ray

b)

X-ray

c)

Microwave

d)

Ultraviolet

43.

Checking for broken bones. Scanning airport luggage.

a)

Gamma Ray

b)

X-ray

c)

Microwave

d)

Ultraviolet

44.

Radioactive tracers in medicine and leaking underground pipes.

Sterilizing hospital equipment.

a)

Gamma Ray

b)

X-ray

c)

Microwave

d)

Ultraviolet

45.
Radar uses which type of electromagnetic waves to detect objects & measure their distance and speed?
a)
microwaves
b)
infrared rays
c)
x-rays
46.
Which electromagnetic waves are used in devices such as heat lamps & TV remote controls?
a)
ultraviolet rays
b)
microwaves
c)
infrared rays
47.
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
48.
Which of the following has frequencies higher than ultraviolet rays?
a)
visible light
b)
infrared rays
c)
x-rays
49.
Which electromagnetic waves allow us to diagnose & treat cancer?
a)
Gamma rays
b)
X-rays
c)
Ultraviolet rays
50.
Electromagnetic waves that help your body produce vitamin D are called?
a)
ultraviolet rays
b)
x-rays
c)
gamma rays

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