Pumped storage hydroelectric schemes are one method used to manage electricity supply and demand.
State two advantages of using a pumped storage hydroelectric scheme compared with a wind farm to meet sudden increases in electrical demand.
38 exam-style questions on Edexcel GCSE Physics 3.2 Dissipation and efficiency, covering 3.2.1 Dissipation of energy, 3.2.2 Reducing unwanted energy transfers, 3.2.3 Efficiency, and 3.2.4 Increasing efficiency. Each one has a worked solution and a mark scheme showing where the marks go.