A technician uses a winch to raise an air-quality monitoring unit from a platform 1.2 m above the ground to a higher platform 6.8 m above the ground. The gravitational potential energy of the unit increases by 1960 J.
Gravitational field strength, g=10 N/kgg = 10\ \text{N/kg}g=10 N/kg.
Calculate the mass of the monitoring unit.
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.