Electromagnetic Spectrum

What is electromagnetic spectrum?

• All of the frequencies or wavelength of electromagnetic radiation

• Roygbiv

• Sound waves that travel in the air

• None of the above

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What is electromagnetic radiation?

• Travels through vacumm

• The rainbow

• a form of energy that exhibits wavelike behavior as it travels through space

• light that vibrates through the air

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which type of waves are used in broadcasting?

• radio waves

• x-rays

• infrared waves

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radar uses which type of electromagnetic waves to detect objects & measure their distance and speed?

• x-rays

• microwave

• infrared rays

Which electromagnetic waves help doctors detect broken bones inside your body

• x-rays

• ultraviolet rays

• gamma rays

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how much of the electromagnetic spectrum is made up of visible light?

• a very large portion

• only a small portion

• about half

which of the followings has wavelengths longer that microwaves?

• Infrared waves

• radio waves

• visible light

The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of

• increasing wavelengths

• increasing amplitude

• increasing frequency

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which electromagnetic waves have the highest frequencies and the shortest wavelength?

• visible light

• gamma rays

• microwaves

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which electromagnetic waves allow us to diagnose & treat cancer ?

• x-rays

• gamma rays

• ultraviolet rays

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