Electromagnetic Spectrum

Radio waves have the _______ wavelength and the ______ frequency of any member.

• Highest , lowest

• Shortest, lowest

• Longest, lowest

• Highest, Shortest

Gamma Rays are the _____ energy EM waves as they have the _____ frequency.

• Highest , Highest

• Shortest, shortest

• Longest, lowest

• Highest, Shortest

______ is the only member of the EM spectrum which can

be seen without special equipment.

• Ultraviolet

• Visible light

• Infrared

• X-ray

Used for Cooking food. Speaking on mobile phones.

• Ultraviolet

• Visible light

• Microwave

• Radio wave

Thermal imaging cameras for the Police and Fire Services

• Gamma Ray

• Infrared

• Microwave

• Radio wave

Used to treat skin conditions. Vitamin D3 for the brain.

• Gamma Ray

• X-ray

• Microwave

• Ultraviolet

Checking for broken bones. Scanning airport luggage.

• Gamma Ray

• X-ray

• Microwave

• Ultraviolet

Radioactive tracers in medicine and leaking underground pipes.

Sterilizing hospital equipment.

• Gamma Ray

• X-ray

• Microwave

• Ultraviolet

The spectrum is arranged in order of wavelength or frequency.

• TV, Microwaves, Infra-Red, Visible Light, Ultraviolet, X-Rays and Gamma Rays, Radio.

• Radio, TV, Microwaves, Infra-Red, Visible Light, Ultraviolet, X-Rays and Gamma Rays.

• Radio, TV, Infra-Red, Visible Light, Ultraviolet, Microwaves, X-Rays and Gamma Rays.

• Radio, TV, Microwaves, Infra-Red, Ultraviolet, X-Rays, Visible Light, and Gamma Rays.

They all travel at the speed of_____

• Light

• Sound

• Rays

• Air