A school planetarium prepares a printed strip to show the positions of planets.
| Planet | Distance from the Sun in millions of km\mathrm{km}km |
|---|---|
| Earth | 150 |
| Mars | 228 |
| Jupiter | 780 |
Mars and Jupiter are to be printed on opposite sides of the position marked Sun. All distances from the Sun are displayed using the same linear scale. The printed positions of Mars and Jupiter must be 2.10 m apart.
Which is closest to the distance between the printed position of Earth and the position marked Sun?
27 cm27\ \mathrm{cm}27 cm
31 cm31\ \mathrm{cm}31 cm
40 cm40\ \mathrm{cm}40 cm
57 cm57\ \mathrm{cm}57 cm
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.