P2

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Which of these radiations is totally absorbed by the atmosphere?
gamma rays
1 of 11
Which electromagnetic radiation provides the energy for photosynthesis?
Light
2 of 11
Why are microwave ovens safe to use?
because microwaves are reflected by the metal sides and door screen.
3 of 11
Which of these is a benefit of sunbathing?
Vitamin D produced in the skin
4 of 11
Which of these is a risk of sunbathing?
Skin cancer
5 of 11
Employers must always reduce risks to much as they can, while still running their businesses. What is this principle called?
ALARA principle.
6 of 11
What are the 'packets' of energy in a beam of electromagnetic radiation called?
photons
7 of 11
Materials are heated when they absorb:
electromagnetic radiation of any type.
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If a detector is moved away from the source, what happens to the intensity detected?
it decreases
9 of 11
Why does ionising radiation cause chemical reactions when it is absorbed?
The radiation heats the absorber.
10 of 11
If there is a correlation between a factor and an outcome, what is needed to show that the factor causes the outcome?
a scientific explanation for the way in which the factor can cause the outcome
11 of 11

Other cards in this set

Card 2

Front

Which electromagnetic radiation provides the energy for photosynthesis?

Back

Light

Card 3

Front

Why are microwave ovens safe to use?

Back

Preview of the front of card 3

Card 4

Front

Which of these is a benefit of sunbathing?

Back

Preview of the front of card 4

Card 5

Front

Which of these is a risk of sunbathing?

Back

Preview of the front of card 5
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