Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Waves
356 practice questions
Topics covered
Practice questions
211–220 of 356
Question 211
3 marks · Easy
Answer and see the solution →Gamma rays are used in hospitals.
(a)[1 mark]State one use of gamma rays in a hospital.
(b)[2 marks]Explain why it is important to protect staff from gamma rays.
Question 212
1 mark · Easy
Answer and see the solution →How does using a lead box help to protect people from gamma rays?
Question 213
1 mark · Normal
Answer and see the solution →State one use of gamma rays in medicine.
Question 214
2 marks · Normal
Answer and see the solution →Explain why gamma rays can both treat and cause cancer.
Question 215
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 216
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 217
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 218
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 219
2 marks · Normal
Answer and see the solution →Explain why food stays fresher for longer after it has been exposed to gamma radiation.
Question 220
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.