Quiz Electromagnetic spectrum

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Quiz Electromagnetic spectrum
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1. What two properties are common to all types of
electromagnetic radiation?
They travel at the speed of light and they can
travel across a vacuum
Answer
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2. Which type of electromagnetic radiation has
the longest wavelength ?
Radio
Answer
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3. Name the two examples of ionising radiation in
the electromagnetic spectrum
Gamma and X-rays ( very high frequency UV may
also be ionising)
Answer
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4. Name the three examples in the
electromagnetic spectrum which are known to cause
cancer
gamma X rays ultra violet
Answer
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5. Which type of electromagnetic radiation is
used for satellite communication ?
microwaves ( these pass through the atmosphere,
unlike radio waves )
Answer
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6. What is the correct name for heat radiation ?
Infra red
Answer
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7. Which type of radiation can cause a sun tan or
skin cancer ?
Ultra violet
Answer
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8. Which type of electromagnetic radiation is a
type of radioactivity ?
Gamma
Answer
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9. Why is sound not part of the electromagnetic
spectrum ?
it does not travel at the speed of light and it
cannot pass through a vacuum
Answer
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10. Which type of electromagnetic radiation is
absorbed by water ?
Microwaves this is why they are useful for
cooking
Answer
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11. When electromagnetic radiation is absorbed,
what type of energy is produced ?
It becomes heat (thermal) energy
Answer
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12. Which is the only type of electromagnetic
radiation which is harmless ?
Radio (even light can damage the retina)
Answer
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the answers correct !
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