A weather satellite is in a stable circular orbit high above Earth. If the satellite is transferred to a lower circular orbit, how do the gravitational force on the satellite and its orbital speed change?
The gravitational force is less and its orbital speed increases.
The gravitational force is less and its orbital speed decreases.
The gravitational force is greater and its orbital speed increases.
The gravitational force is greater and its orbital speed decreases.
27 exam-style questions on OCR GCSE Physics Beyond Earth. Each one has a worked solution and a mark scheme showing where the marks go.