A scientific probe of mass 450 g is suspended at rest from a vertical tether on the surface of Saturn's moon, Titan. The tension in the tether is 0.612 N.
What is the gravitational field strength on Titan?
0.28 N/kg0.28\text{ N/kg}0.28 N/kg
0.74 N/kg0.74\text{ N/kg}0.74 N/kg
1.36 N/kg1.36\text{ N/kg}1.36 N/kg
1.36×10−3 N/kg1.36 \times 10^{-3}\text{ N/kg}1.36×10−3 N/kg
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.