Uses and dangers of radioactivity - Edexcel

1

Exposure to which radiation is used to preserve fruit?

2

What is the problem when treating cancer by injecting with radioactive substances?

3

Radioactive powder being spilled onto clothing is an example of …. ?

4

Where does most background radiation come from?

5

Why might a radioactive source be injected into a patient?

6

Which type of radiation is used in a household smoke alarm?

7

Whilst using a gamma knife, how do the medical staff protect themselves from the radiation?

8

Why must PET scan tracers be made in the same hospital?

9

What properties are most desired in an isotope used to investigate the kidneys which normally take 12 hours to process a contaminant?

10

Which of these is something that can be done to reduce the risk of exposure to radiation?