A battery supplies an electric heater immersed in water. Which gives the energy transfer pathway from the battery to the heater, followed by the pathway from the heater to the water?
Electrically, then by heating
Electrically, then mechanically
By heating, then electrically
Mechanically, then by heating
115 exam-style questions on Edexcel GCSE Physics 8.1 Energy transfers and work, covering 8.1.1 Energy stores and transfer diagrams, 8.1.2 Ways of changing a system's energy, and 8.1.3 Work done by forces. Each one has a worked solution and a mark scheme showing where the marks go.