This question is about the Solar System.

1. (a)(i)The diagram shows the Earth orbiting the Sun. [Figure 5] On Figure 5, draw an arrow to show the direction of the force acting on the Earth.[1]
2. (a)(ii)State what keeps the Earth in orbit around the Sun.[1]
3. (a)(iii)The Earth takes 365 days to orbit the Sun. The radius of the Earth's orbit is 1.50 × 10¹¹ m. Calculate the orbital speed of the Earth in m/s.[4]
4. (b)(i)Most satellites orbit the Earth. Describe the path of a geostationary satellite.[2]
5. (b)(ii)Explain why the stars appear to be fixed relative to each other.[3]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.