On Mars, the gravitational field strength is 3.7 N/kg. Calculate the gravity force (weight) for a 120 kg Mars rover.
Use the equation:
gravity force=mass×gravitational field strength \text{gravity force} = \text{mass} \times \text{gravitational field strength} gravity force=mass×gravitational field strength32.4 N32.4\text{ N}32.4 N
120 N120\text{ N}120 N
444 N444\text{ N}444 N
4440 N4440\text{ N}4440 N
39 exam-style questions on OCR GCSE Physics Forces in action. Each one has a worked solution and a mark scheme showing where the marks go.