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WorksheetsSavvas Electromagnetic Radiation
Total questions: 20
Worksheet time: 10mins
All of the following are examples of electromagnetic waves except
sound waves
microwaves
gamma rays
infrared light
An electromagnetic wave begins when a(n)
atom loses an electron
magnet is connected to a battery
charged particle vibrates
electron is magnetized
Which of the following waves does not require a medium?
ocean waves
earthquake waves
sound waves
radio waves
Most of the electromagnetic radiation on Earth comes from
the sun
radio towers
X ray machines
microwave ovens
How long does it take electromagnetic radiation to reach Earth from the sun?
1 second
7.5 seconds
8 minutes
93 minutes
Which electromagnetic waves are used for cell phone signals?
X rays
microwaves
gamma rays
none of the above
What color does the shortest wavelength of visible light appear to the human eye?
red
yellow
orange
violet
Uses of electromagnetic radiation include
cooking
communications
medicine
all of the above
Electromagnetic waves with the lowest frequencies may have wavelengths as long as
many kilometers
a few meters
a couple of centimeters
a fraction of a millimeter
What statement about electromagnetic waves is true?
An electromagnetic wave with a shorter wavelength has a lower frequency
All electromagnetic waves travel at the same speed across space
All electromagnetic waves are harmful
none of these are true.
Albert Einstein's theory about the nature of electromagnetic radiation is the
wave-particle theory
photon-particle theory
wave-energy theory
photon-energy theory
Which statement about the speed of electromagnetic waves is true?
They travel more quickly through a medium than across space
They travel at the same speed through all media
They always travel at the speed of light
none of the above
Frequencies of electromagnetic waves range from
billions to trillions of hertz
thousands to trillions of hertz
hundreds to millions of hertz
hundreds to thousands of hertz
Which of the following is not an example of electromagnetic radiation?
light
heat
X rays
radio waves
Which electromagnetic waves are used for television broadcasts?
radio waves
television waves
infrared waves
ultraviolet waves
Radar is used for
tracking storms
detecting air traffic
determining the speed of cars
all of these
Which electromagnetic waves are used for cell phone signals?
X-rays
microwaves
gamma rays
none of these
Which choice lists electromagnetic waves in the correct sequence from higher to lower frequencies?
microwaves, infrared light, visible light
ultraviolet light, X-rays, gamma rays
X-rays, ultraviolet light, visible light
radio waves, microwaves, infrared light
Electromagnetic waves that have the least amount of energy are
radio waves
infrared light
visible light
ultraviolet light
What color does the shortest wavelength of visible light appear to the human eye?
red
yellow
orange
violet
