Radioactivity - Quiz - gcsescience.com.
Thickness Control - Tracer - Cancer - Safety.

1. Beta radiation is used to control the
      thickness of aluminium foil because

a) All of the radiation passes through the foil

b) None of the radiation passes through the foil,
        it is all absorbed

c) Some of the radiation passes through the foil
        and some is absorbed

d) Aluminium is a beta emitter

 

2. The radioactive source used in a smoke detector is

a) An alpha emitter with a long half life

b) A beta emitter with a long half life

c) An alpha emitter with a short half life

d) A gamma emitter with a short half life

 

3. A radioactive source used to detect a leak
      in an underground pipe would be

a) An alpha emitter with a long half life

b) A beta emitter with a long half life

c) An alpha emitter with a short half life

d) A gamma emitter with a short half life

 

4. What type of radioactive material
      would be injected into blood?

a) An alpha emitter with a long half life

b) A beta emitter with a long half life

c) A gamma emitter with a short half life

d) Radioactive materials are never injected into blood
         because they are too dangerous

 

5. What type of radioactivity is used in sterilisation?

a) Alpha particles

b) Beta particles

c) Gamma rays

d) Radioactivity can not be used for sterilisation

 

6. What type of radioactivity is used to treat cancer?

a) Alpha particles

b) Beta particles

c) Gamma rays

d) Radioactivity can not be used to treat cancer

 

7. Which form of radioactivity is least harmful
      when it is outside of the body?

a) Alpha particles

b) Beta particles

c) Gamma rays

d) No form of radioactivity is harmful
        when it is outside of the body

 

                       
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