A student groups four objects according to the body they orbit directly.
The objects are the Earth, the Moon, an asteroid in the main asteroid belt, and an artificial satellite in a low Earth orbit.
Which grouping is correct?
Sun: Earth and Moon; Earth: asteroid and artificial satellite.
Sun: Earth and asteroid; Earth: Moon and artificial satellite.
Sun: asteroid and Moon; Earth: Earth and artificial satellite.
Sun: Earth and artificial satellite; Earth: Moon and asteroid.
80 exam-style questions on Edexcel GCSE Physics 7.1 The Solar System and gravity, covering 7.1.1 Weight and g on different bodies in space, 7.1.2 The Solar System, 7.1.3 Changing ideas about the Solar System, 7.1.4 Orbits of moons, planets, comets and satellites, and 7.1.5 Gravity and orbital motion. Each one has a worked solution and a mark scheme showing where the marks go.