1. Pig – P4 Higher

2. Describe one way gamma rays are different to x-rays and one way in which they are similar?

3. Describe how gamma rays can be used to treat cancer

4. Describe how beta or gamma radiation can be used as a tracer in the body? [3 points]

5. What does the word ‘half-life mean?

6. Explain how to find the time taken for the first half life?

7. What type of objects can be carbon dated and how is it done (4 points)

8. Which type of radiation is which? (3 marks) High energy electron (negative) Helium particle 2 protons, 2 neutrons (positive) Electromagnetic wave (no charge or mass)

9. Complete the decay equation, what type of decay is it? (2 marks)

10. What would happen to the atomic number and atomic mass during beta decay? np e

11. Describe what happens to a nucleus when a beta particle is emitted (1) New nucleus

12. What is the main advantage of x- rays over gamma rays?

13. Explain how smoke detectors work, including the type of radiation used [3 point]

14. Why would you expect a new rock to contain a larger proportion of uranium to lead than an old rock?

15. Describe what happens to allow uranium to release energy in a nuclear power station?

16. What is the difference between fission in a power station and fission in a bomb?

17. Explain how boron rods are used to control the reaction in a nuclear power station?

18. How does a nuclear power station turn water into steam? [3 points]