Which group below correctly lists the electromagnetic waves in order from lowest to highest frequency?

A. Microwaves, infrared waves, visible light, x-rays
Correct!

B. Infrared waves, radio waves, x-rays, ultraviolet waves
Incorrect. Infrared has a higher frequency than radio and x-ray has a higher frequency than ultraviolet.

C. Radio waves, visible light, gamma rays, x-rays
Incorrect. Gamma rays have a higher frequency than x-rays.

D. Microwaves, radio waves, infrared waves, ultraviolet waves
Incorrect. Microwaves have a higher frequency than radio waves.

Some reptiles can see light of shorter wavelengths than humans can see. According to the electromagnetic spectrum, what type of light do you think these reptiles can see?

A. Microwaves
Incorrect. Microwaves have a longer wavelength when compared to visible light.

B. Ultraviolet waves
Correct! Ultraviolet radiation has a shorter wavelength than visible light.

C. Infrared waves
Incorrect. Infrared waves have a longer wavelength when compared to visible light.

D. Radio waves
Incorrect. Radio waves have a longer wavelength when compared to visible light.

Television signals are transmitted by —

A. microwaves
Incorrect. Television signals are not transmitted by microwaves.

B. ultraviolet waves
Incorrect. Television signals are not transmitted by ultraviolet waves.

C. infrared waves
Incorrect. Television signals are not transmitted by infrared waves.

D. radio waves
Correct! Television signals are transmitted by radio waves.

All electromagnetic waves have the same —

A. frequency
Incorrect. Radio waves have a lower frequency than gamma rays.

B. speed
Correct! All electromagnetic waves travel at the same speed.

C. wavelength
Incorrect. Radio waves have longer wavelengths than gamma rays.

D. energy
Incorrect. Radio waves have a lower energy than gamma rays.