A stellar survey records information about two stars. Both stars were much more massive than the Sun and both have exploded as supernovae. For these observations, the researchers classify a remaining core with a mass of at least 4.0×1030 kg4.0 \times 10^{30}\,\mathrm{kg}4.0×1030kg as having enough mass remaining. A core with a mass below this is classified as not having enough mass remaining.
| Star | Mass of remaining core after the supernova |
|---|---|
| A | 5.2×1030 kg5.2 \times 10^{30}\,\mathrm{kg}5.2×1030kg |
| B | 3.1×1030 kg3.1 \times 10^{30}\,\mathrm{kg}3.1×1030kg |
State the final stage reached by each star and explain why the final stages are different.
84 exam-style questions on AQA GCSE Physics 8.1 Solar system; stability of orbital motions; satellites, covering 8.1.1 Our solar system, 8.1.2 The life cycle of a star, and 8.1.3 Orbital motion, natural and artificial satellites. Each one has a worked solution and a mark scheme showing where the marks go.