A sample-handling robot is used on Mars and is later taken to the Moon.
| Body | g g\,g at the surface in N/kg\text{N/kg}N/kg | Weight of robot in N\text{N}N |
|---|---|---|
| Mars | 3.7 | 222 |
| Moon | 1.6 | to be calculated |
Calculate the gravitational force exerted by the Moon on this robot.
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.