Page 56 - Science Course 3 (Book 2)

Mo10-L2a: What are Light Waves and Electromagnetic Waves?

Ultraviolet waves, for example, carry enough energy Electromagnetic waves
to cause particles of matter to combine or break produced by vibrations
apart and form other types of matter. within the nucleus of an
atom are called gamma
The ozone layer in the Earth’s atmosphere blocks the rays.
Sun’s most harmful UV rays from reaching Earth.
Gamma rays have shorter
wavelengths and higher
frequencies than any other
form of electromagnetic
wave.

The Sun produces an enormous
amount of energy that is carried
outward in all directions
by electromagnetic waves.

Infrared waves, light, and
ultraviolet waves carry
almost all of the Sun’s energy.

An electromagnetic wave that has a slightly shorter
wavelength and higher frequency than an ultraviolet
wave is called an X-ray.

Light

Light
Ultraviolet
waves
Ultraviolet
Waves
Infrared
Infrared
waves
Waves

SUMMARY

What are Light Waves and Electromagnetic
Waves?
The different types of electromagnetic waves
Airport scanners like this one sometimes use X-rays play important roles in your life.
to take pictures of the contents of luggage.

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