Using radioactive materials Flashcards
1
Q
What is one factor that affects that amount of background radiation?
A
- Where you live
2
Q
Fill in the gap:
The __________________ of a source always ________ over time
A
- Radioactivity
2. Decreases
3
Q
What is half life?
A
Time taken for half of the atoms to decay
4
Q
What is one use of alpha radiation?
A
Household fire alarms
5
Q
What is one use of gamma rays?
A
Sterilisation of food/equipment
6
Q
What is a use of gamma rays?
A
Cancer treatment
7
Q
What two things can ionising radiation cause?
A
- Tissue damage
2. Cell mutation
8
Q
The extent of the harmful effects of ionising radiation depends on two things, what are they.
A
- How much exposure you have to the radiation
2. The energy and penetration of the radiation
9
Q
What’s one problem with nuclear fission?
A
It releases a lot of energy that can be used to generate electricity
