A student writes three statements about stars.
Statement 1: The Sun will end its life as a black hole.
Statement 2: A white dwarf releases energy by nuclear fusion.
Statement 3: A red giant is smaller than the main sequence star it formed from.
Explain why Statement 1 is wrong.
Write a corrected version of Statement 2.
Write a corrected version of Statement 3.
State the next stage in the life cycle of the Sun.
A white dwarf gets dimmer over a very long time.
Explain why.
75 exam-style questions on Edexcel GCSE Physics 7.3 Stars, covering 7.3.1 Evolution of stars similar to the Sun, 7.3.2 Evolution of massive stars, and 7.3.3 Observing the Universe. Each one has a worked solution and a mark scheme showing where the marks go.