Which row in the table explains why different constellations are visible in the night sky at different times of the year, and why stars appear to move across the sky during the night?
| Constellations visible at different times of the year | Apparent motion of stars during the night | |
|---|---|---|
| A | The Earth orbits the Sun once approximately every 365 days | The Earth rotates on its axis once every 24 hours |
| B | The Earth rotates on its axis once every 24 hours | The Moon orbits the Earth approximately once every month |
| C | The Earth orbits the Sun once approximately every 365 days | The Moon orbits the Earth approximately once every month |
| D | The Earth rotates on its axis once every 24 hours | The Earth orbits the Sun once approximately every 365 days |
Row A
Row B
Row C
Row D
100 exam-style questions on CIE IGCSE Physics 6.1 The Earth and the Solar System, covering 6.1.1a Rotation of the Earth, the seasons and the Moon, 6.1.1b Average orbital speed, 6.1.2a Contents of the Solar System, 6.1.2b Formation of the Solar System, 6.1.2c Gravitational field strength of a planet, and 6.1.2d Orbits and gravitational attraction. Each one has a worked solution and a mark scheme showing where the marks go.