Pearson Edexcel International GCSE Physics (4PH1) · EDEXCEL 4PH1
8 Astrophysics
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Astrophysics
- A comet travels in a highly elliptical orbit around the Sun. Describe and explain how the … (4 marks, Describe and explain)
- Explain how observations of red-shift from distant galaxies provide evidence for the Big B… (4 marks, Explain)
- Describe the stages in the life cycle of a star that has a similar mass to the Sun, beginn… (4 marks, Describe)
- A natural satellite orbits a planet in a slightly elliptical orbit. Describe how the orbit… (4 marks, Describe and Explain)
- An artificial satellite is moved from a low orbit to a higher orbit around the Earth, whil… (4 marks, Explain)
- Explain why a massive star, after leaving the main sequence, ends its life differently fro… (4 marks, Explain)
- Explain why planets closer to the Sun travel at a greater orbital speed than planets that … (4 marks, Explain)
- A moon orbits a planet in a slightly elliptical orbit at a near constant orbital speed. St… (4 marks, Describe and Explain)
- A main sequence star much more massive than the Sun eventually runs out of hydrogen fuel. … (4 marks, Describe)
- A protostar forms from a nebula and eventually becomes a main sequence star. Explain why a… (4 marks, Explain)
- A star of similar mass to the Sun is currently a stable main sequence star. Explain what h… (4 marks, Explain)
- Cosmic microwave background radiation (CMBR) is detected all around us. Explain how the ex… (4 marks, Explain)
- A student states: 'The Doppler effect explains why light from distant galaxies is red-shif… (4 marks, Explain)
- The Big Bang theory is the currently accepted model for the origin of the universe. Descri… (4 marks, Describe)
- A scientist observes two distant galaxies, Galaxy P and Galaxy Q. Galaxy P is twice as far… (4 marks, Compare)