Electromagnetic Waves Flashcards

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1
Q

What is the relationship between wavelength and frequency?

A

They are inversely proportional

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2
Q

Whats the speed at which electromagnetic waves travel in a vacuum?

A

300,000,000/3*10(8)

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3
Q

What are the different wavelengths(colours) in visible light?

A

Red,Orange,Yellow,Green,Blue,Indigo,Violet

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4
Q

What waves in the electromagnetic spectrum are ionising?

A

Ultra Violet, X-Rays, Gamma Rays

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5
Q

What waves in the electromagnetic spectrum are used in communication?

A

Radio waves, Micro waves

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6
Q

Where do Gamma Rays come from?

A

Radioactive decay

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7
Q

Where does Visible Light, Ultra Violet, X-Rays come from?

A

Electrons dropping down energy levels

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8
Q

Where does Infra Red come from?

A

Bonds Holding Molecules Together Vibrating

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9
Q

What happens when waves coke into contact with something?

A

They Can Be Reflected, Absorbed, or Transmitted or a combination of these three

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