A computer model contains star R and two large natural objects.
| Object | Object it directly orbits |
|---|---|
| P | star R |
| Q | object P |
Explain why P and Q have different classifications.
Explain why Q stays in its orbit around P.
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.