Edexcel International GCSE Physics

Edexcel International GCSE Physics Light and Sound Exam Questions

Free Edexcel International GCSE Physics exam questions on Light and Sound, with mark schemes. Covers reflection, refraction, Snell's law, total internal reflection and sound waves.

Light and Sound exam questions

These packs of real past exam questions cover the whole of Section 3: Waves, including Light and Sound. Work through every question on this sub-topic, then mark your answers against the mark scheme.

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About Edexcel International GCSE Physics Light and Sound

This sub-topic covers light and sound.

What you need to know

  • Refraction n = sin i / sin r.
  • TIR Critical angle and optical fibres.
  • Sound Frequency, pitch, amplitude and the oscilloscope.

Common mistakes in Light and Sound

  • Measuring angles from the surface.
  • Saying sound travels in a vacuum.

Try two Light and Sound exam-style questions

1. State the condition for TIR. (1 mark)

Show the mark scheme answer

Angle of incidence greater than the critical angle, going into a less dense medium.

2. State the human hearing range. (1 mark)

Show the mark scheme answer

20 Hz to 20 000 Hz.

Light and Sound FAQs

What does this cover?

Light behaviour and sound.

Which practical links here?

Investigating refraction in glass blocks.