1) Step up transformers a) Increase voltage b) Decrease voltage c) Do not affect voltage 2) Step down transformers a) Decrease voltage b) Increase voltage c) Do not affect voltage 3) Fossil fuels are a) Finite b) Infinite 4) Resistance is greater in a a) Long, thin wire b) Long, thick wire c) Short, thin wire d) Short, thick wire 5) Power is measured in Watts and is equal to a) The energy transferred per second b) The current moving each minute c) The PD across a battery 6) Fossil fuels contain a store of a) Kinetic energy b) Elastic energy c) Chemical energy 7) The UK mains supply is a) AC b) DC c) 230V d) 320V e) 50Hz f) 25Hz

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