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.
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.
Revise this topic with flashcards: Edexcel IGCSE Physics 4PH1 Flashcards, with mark scheme answers for Anki and Quizlet.