it’s just a phase

The Electromagnetic

Spectrum

What is the electromagnetic spectrum?

It is the range of wavelengths or frequencies over which electromagnetic

radiation extends.

Term - WavelengthThe length of one wave.

The wavelength determines the type of electromagnetic

energy.

Parts of the Electromagnetic Spectrum

Name How They’re Made

Uses Dangers

Gamma Rays

Given off by stars and some radioactive material.

Kill cancer cells.

Cause cell damage and mutations.

Parts of the Electromagnetic SpectrumName How

They’re Made

Uses Dangers

X-rays Produced by stars and special machines designed to produce x-rays.

To see inside people and things.

Can cause cell damage and cancer.

Parts of the Electromagnetic Spectrum

Name How They’re Made

Uses Dangers

Ultraviolet Rays

By special lamps or given off by stars.

Sun tan booths, kill microbes, cause body to produce Vitamin D.

Damage eyes, produce sunburns, cause cancer

Parts of the Electromagnetic Spectrum

Name How They’re Made

Uses Dangers

Light Produce by anything hot enough to glow.

See things.

Too much light can damage the retina.

Parts of the Electromagnetic SpectrumName How

They’re Made

Uses Dangers

Infrared Given off by hot objects.

Remote controls, heal the body, used in alarm systems, thermal imaging.

Cause cell damage and mutations.

The Infrared Zoo.

Parts of the Electromagnetic Spectrum

Name How They’re Made

Uses Dangers

Microwaves

Produced by a transmitter.

Cook foods, mobile phones, radar.

Cause cataracts, affect parts of brain.

Parts of the Electromagnetic Spectrum

Name How They’re Made

Uses Dangers

Radio waves

Transmitters.

Communication

May cause cancer.

Parts of the Electromagnetic Spectrum

Name How They’re Made

Uses Dangers

Radio waves

Transmitters.

Communication

May cause cancer.

High Frequency Low Frequency

The Presentation Ends Here.