Pearson Edexcel International GCSE (9–1) · PHYSICS · Section
Gamma rays
16 practice questions
Practice questions
11–16 of 16
Question 11
3 marks · Normal
Answer and see the solution →Gamma rays can be harmful to medical staff working with them.
(a)[1 mark]State one precaution that medical staff should take when working with gamma rays.
(b)[2 marks]Explain why this precaution reduces the risk of harm.
Question 12
2 marks · Normal
Answer and see the solution →Copy and complete the table for gamma rays.
Possible harm and precautions for gamma rays Type of radiation Possible harm Precautions Gamma rays Question 13
1 mark · Normal
Answer and check →Which of the following is NOT a use of gamma rays?
- A.Treating cancer
- B.Sterilising food
- C.Taking photographs
- D.Sterilising surgical instruments
Question 14
3 marks · Normal
Answer and see the solution →Gamma rays are used to sterilise medical equipment.
(a)[2 marks]Explain why gamma rays are suitable for sterilising materials inside sealed packages.
(b)[1 mark]State one advantage of using gamma rays rather than boiling water for sterilising.
Question 15
2 marks · Normal
Answer and see the solution →Explain why food stays fresher for longer after it has been exposed to gamma radiation.
Question 16
3 marks · Normal
Answer and see the solution →Gamma rays are highly penetrating electromagnetic waves.
(a)[2 marks]Describe what happens if a person is exposed to a large dose of gamma rays.
(b)[1 mark]State one way to protect people from exposure to gamma rays in hospitals.