Question 4
FThe Figure shows an x-ray scanner used for airport security.
Figure
a.[1]
Give one other use of x-rays.
b.[3]
Explain why the scanner has lead-lined walls and lead curtains.
c.[2]
The operator works next to the scanner for 8 hours every day.
Explain why the risk of harm to the operator is greater than the risk of harm to a passenger whose bag is scanned once.
d.[2]
A passenger suggests that the scanner should use ultraviolet radiation instead of x-rays, because ultraviolet radiation is less dangerous.
Explain why ultraviolet radiation would not be suitable for this scanner.
5.4 Uses and dangers of EM radiation Questions
104 exam-style questions on Edexcel GCSE Physics 5.4 Uses and dangers of EM radiation, covering 5.4.1 Dangers of electromagnetic radiation, 5.4.2 Uses of electromagnetic radiation, 5.4.3 Radio waves and oscillations in circuits, and 5.4.4 Changes in atoms and nuclei generating radiation. Each one has a worked solution and a mark scheme showing where the marks go.