Planets are celestial bodies that orbit the Sun in our Solar System.
What is the shape of their orbits and how is the Sun positioned within the orbit?
Shape of orbit: circular; Position of the Sun: at the centre of the orbit
Shape of orbit: circular; Position of the Sun: not at the centre of the orbit
Shape of orbit: elliptical; Position of the Sun: at the centre of the orbit
Shape of orbit: elliptical; Position of the Sun: not at the centre of the orbit
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.