A crane raises a load of mass 20 kg from 1.0 m to 3.5 m above the ground. The load starts and finishes at rest. Use g=10 N/kgg=10\ \mathrm{N/kg}g=10 N/kg. What is the increase in gravitational potential energy?
500 J500\ \mathrm{J}500 J
700 J700\ \mathrm{J}700 J
200 J200\ \mathrm{J}200 J
900 J900\ \mathrm{J}900 J
121 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.