A climber of mass 60 kg gains 9000 J of gravitational potential energy while climbing a wall.
Gravitational field strength = 10 N/kg.
Use the equation: gravitational potential energy=mass×gravitational field strength×height\text{gravitational potential energy} = \text{mass} \times \text{gravitational field strength} \times \text{height}gravitational potential energy=mass×gravitational field strength×height
How high does the climber climb?
1.5 m1.5\ \text{m}1.5 m
15 m15\ \text{m}15 m
150 m150\ \text{m}150 m
900 m900\ \text{m}900 m
44 exam-style questions on OCR GCSE Physics 7.1 Work done, covering 7.1.1 Conservation of energy in a closed system, 7.1.2 Energy stores and transfers, 7.1.3 Energy changes by heating, forces and current, 7.1.4 Quantifying energy transfers in a system, and 7.1.5 Kinetic, elastic and gravitational potential energy. Each one has a worked solution and a mark scheme showing where the marks go.