Electromagnetic Waves Quiz

What is the fundamental difference between a wave of light and a radio wave?

• Their color

• Their ability to travel through space

• Their wavelength and frequency

• Their speed

How are the electric and magnetic fields oriented in an electromagnetic wave?

• Parallel to each other

• At 45-degree angles to each other

• At 90-degree angles to each other

• In the same direction

What does the diagram of an electromagnetic wave represent?

• A three-dimensional wave

• The color spectrum of light

• The field strength along a one-dimensional path

• The speed of the wave

Why can electromagnetic waves travel through empty space?

• They are slower than sound waves

• They are visible to the human eye

• They are made of particles

• They do not require a medium

What happens to the wavelength if the frequency of an electromagnetic wave increases?

• The wavelength doubles

• The wavelength decreases

• The wavelength increases

• The wavelength remains the same

Which type of electromagnetic wave has the longest wavelength?

• Gamma rays

• X-rays

• Radio waves

• Ultraviolet light

What is the primary use of microwaves?

• Medical imaging

• Cooking and radar

• Communication with submarines

• Detecting black holes

Which electromagnetic wave is most commonly associated with radiation from radioactive materials?

• Microwaves

• Gamma rays

• Ultraviolet light

• Infrared waves

What is one way to produce an electromagnetic wave?

• By heating a metal

• By accelerating an electric charge

• By cooling a gas

• By compressing a liquid

What happens when an electron moves from a higher to a lower energy state in an atom?

• It releases energy as an electromagnetic wave

• It absorbs energy

• It becomes a proton

• It stops moving