A natural satellite follows a nearly circular path around a planet. It travels 172 800 km172\,800\ \mathrm{km}172800 km during one orbit at an average speed of 2.0 km/s.
What is the orbital period of the natural satellite?
24 h24\ \mathrm{h}24 h
96 h96\ \mathrm{h}96 h
86 400 h86\,400\ \mathrm{h}86400 h
1 440 h1\,440\ \mathrm{h}1440 h
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.