ELECTROMAGNETIC WAVES

What kind of electromagnetic radiation has the longest wavelength?

• ultraviolet rays

• infrared rays

• radio waves

• gamma rays

What kind of electromagnetic radiation has the highest energy?

• ultraviolet rays

• gamma rays

• visible light

• x-rays

Which waves are often used for communication?

• ultraviolet rays

• infrared waves

• radio waves

• gamma rays

Honeybees can see light of shorter wavelengths than humans, but they cannot see red light. What do you think is the kind of radiation that honeybees can see?

• ultraviolet rays

• gamma rays

• radio waves

• visible light

Rattlesnakes need to catch preys at night. What type of waves would their eyes need to see?

• infrared light

• gamma rays

• radio waves

• visible light

The waves produced by heat lamps are __________.

• microwaves

• mechanical

• infrared

• x-rays

A device that produces a narrow beam of light of one wavelength is a _________.

• microwave oven

• laser

• radar

• TV

Waves can be used to examine internal body parts are __________.

• radio waves

• visible light

• ultraviolet

• x-rays

All of the following are used in communications EXCEPT __________.

• gamma rays

• microwaves

• lasers

• radars

Microwaves are used in all of the following EXCEPT in __________.

• communications

• surgery

• ovens

• radars