The Table shows the gravitational field strength, ggg, on the surface of five planets.
Table
| Planet | g g\,g in N/kg\text{N/kg}N/kg |
|---|---|
| Mercury | 3.7 |
| Venus | 8.9 |
| Earth | 10 |
| Mars | 3.7 |
| Jupiter | 25 |
A space probe has a mass of 450 kg.
Calculate the weight of the probe on Jupiter.
On one of the other planets in the Table, the probe has a weight of 4005 N.
Determine which planet the probe is on.
A student says:
'The probe has a smaller mass on Mars than on the Earth, because it weighs less on Mars.'
Explain why the student is wrong.
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.