Edexcel International GCSE Physics
Edexcel International GCSE Physics Cosmology Exam Questions
Free Edexcel International GCSE Physics exam questions on Cosmology, with mark schemes. Covers red-shift, the Big Bang and cosmic microwave background radiation.
Cosmology exam questions
These packs of real past exam questions cover the whole of Section 8: Astrophysics, including Cosmology. Work through every question on this sub-topic, then mark your answers against the mark scheme.
StemUp mark scheme flashcards
Edexcel IGCSE Physics 4PH1 Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About Edexcel International GCSE Physics Cosmology
This sub-topic covers the origin of the universe.
What you need to know
- Red-shift Galaxies moving away.
- Big Bang The universe expanding from a point.
- CMB Evidence for the Big Bang.
Common mistakes in Cosmology
- Saying red-shift means galaxies are red.
- Forgetting CMB is evidence.
Try two Cosmology exam-style questions
1. Explain what red-shift shows. (1 mark)
Show the mark scheme answer
Galaxies are moving away from us.
2. Give two pieces of evidence for the Big Bang. (2 marks)
Show the mark scheme answer
Red-shift (1) and CMB radiation (1).
Cosmology FAQs
What does this cover?
Red-shift, the Big Bang and CMB.
Which equation links red-shift and speed?
Δλ/λ₀ = v/c.
Revise this topic with flashcards: Edexcel IGCSE Physics 4PH1 Flashcards, with mark scheme answers for Anki and Quizlet.
