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5.2 The electromagnetic spectrum

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Question 30
H

Which statement correctly gives a use of an electromagnetic wave and the reason it is suitable?

[1]
A

X-rays check luggage at airports because they are reflected by metal objects

B

Infrared is used in remote controls because it can pass through walls between rooms

C

Gamma rays sterilise medical equipment because they kill microorganisms on it

D

Microwaves cook food because they are absorbed by the metal walls of the oven

Markscheme

5.2 The electromagnetic spectrum Questions

  1. GCSE
  2. /Physics
  3. /5.2 The electromagnetic spectrum

48 exam-style questions on OCR GCSE Physics 5.2 The electromagnetic spectrum, covering 5.2.1 Electromagnetic waves in space, 5.2.2 Energy transfer by electromagnetic waves, 5.2.3 Frequency and wavelength across the spectrum, 5.2.4 Groups of the electromagnetic spectrum, 5.2.5 Visible light and the limits of human sight, 5.2.6 Light as an electromagnetic wave, 5.2.7 Uses of electromagnetic waves, 5.2.8 Hazards of ultraviolet, X-rays and gamma rays, 5.2.9 Ultrasound and imaging inside the body, and 5.2.10 Radio waves and oscillating circuits. Each one has a worked solution and a mark scheme showing where the marks go.

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