P2, Atoms and radiation

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  • Created by: emmajane_
  • Created on: 15-05-14 15:43
What is half life?
The time it takes for a number of nuclei of the isotope sample to half
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What are the 3 types of natural sources- radiation
Cosmetic rays, rocks and soil and living things
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What are 3 types of artificial sorces?
medical x-rays, radioactive fallout and radioactive waste
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Why do people who work in the radioactive industry have to wear a film badge?
So they can check regularly the levels of radiation they have absorbed
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Name 3 types of radiation
Alpha, beta and gamma rays
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What type of penetration does alpha radiation have?
the weakest penetration. Particles can be stopped by a piece of paper
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What type of penetration does beta radiation have and what can it be stopped by?
It can penetrate air and paper. Can be stopped by aluminium
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What type of penetration does gamma radiation have? What can it be stopped by?
It has the most penetration. Can be stopped by lead
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What is the magnetic field made of and what can it deflect?
Name of positively charged particles. Can deflect alpha and beta radiation.
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Why is alpha radiation the most harmful inside body?
Because they are absorbed by cells
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Why is gamma radiation not very harmful inside body?
Becausre it passes straight through the cells
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Why is gamma and beta radiation the most harmful outside the body?
Because they can penetrate the skin and harm the cells inside
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Other cards in this set

Card 2

Front

What are the 3 types of natural sources- radiation

Back

Cosmetic rays, rocks and soil and living things

Card 3

Front

What are 3 types of artificial sorces?

Back

Preview of the front of card 3

Card 4

Front

Why do people who work in the radioactive industry have to wear a film badge?

Back

Preview of the front of card 4

Card 5

Front

Name 3 types of radiation

Back

Preview of the front of card 5
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