Question 1
FThe Figure shows two workers, A and B, in a laboratory that uses radioactive materials.
Figure
a.[1]
Which worker, A or B, has been contaminated?
b.[2]
Worker A walks out of the laboratory. Explain why worker A no longer receives any radiation from the source.
c.[2]
Worker B also walks out of the laboratory. Explain why worker B still receives radiation after leaving the laboratory.
6.2 Uses and hazards Questions
48 exam-style questions on OCR GCSE Physics 6.2 Uses and hazards, covering 6.2.1 Contamination and irradiation, 6.2.2 Half-life and radiation hazards, 6.2.3 Medical uses of nuclear radiation, 6.2.4 Nuclear fission and chain reactions, and 6.2.5 Nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.