Radioactive liquid is spilled onto a laboratory coat. The wearer leaves the room while still wearing the coat. Which action most directly reduces continued exposure from the spill?
Move further from the spill while continuing to wear the coat.
Wear a dosimeter badge over the contaminated part of the coat.
Place a screen around the original spill and continue wearing the coat.
Remove the coat and place it in a designated waste container.
97 exam-style questions on Edexcel GCSE Physics 6.5 Uses and dangers of radioactivity, covering 6.5.1 Uses of radioactivity, 6.5.2 Dangers of ionising radiation and precautions, 6.5.3 Half-life and radiation dangers, 6.5.4 Safety precautions for radiation exposure, and 6.5.5 Contamination and irradiation. Each one has a worked solution and a mark scheme showing where the marks go.