Electromagnetic Waves

Helpful in military night vision goggles and detects thermal images

• radio wave

• microwave

• infrared

• light

A remote control for a television works using what kind of electromagnetic wave?

• Radiowaves

• Microwaves

• Infrared Radiation

• Visible Light

This wave is literally "below red" and your eye cannot see it

• Visible light

• Infrared

• UV

• Gamma Ray

The electromagnetic wave to see the temperature of those who arrive at the airport is

• Radiowave

• Visible Light

• Infrared

• UV

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

• radio

• visible

• ultraviolet

• gamma rays

Which color waves have the lowest frequency?

• red

• yellow

• green

• violet

Which color waves have the shortest wavelength?

• red

• yellow

• green

• violet

What happens to frequency when wavelength decreases?

• stays the same

• decreases

• increases

• There is no relationship between wavelength & frequency.

Which type of electromagnetic wave travels fastest through a vacuum?

• radio

• gamma rays

• visible light

• They all travel at the same speed.

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?

 

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

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

• Light waves travel faster than sound waves.

• Sound waves travel faster than light waves.