electricity

• How a generator works

  1. Rotate a wire inside a magnetic field

  2. Creates a voltage
• Generator

  Uses the concept of rotating a wire in a magnetic field to transfer rotational motion (kinetic energy) into a voltage (electrostatic energy)
• How a hydroelectric dam works

  1. Stores water at height (gravitational potential energy)

  2. Water released to flow through pipe

  3. Turns a turbine

  4. Turbine turns a generator
• How tidal power works

  1. Build a barrage across an estuary

  2. Water forced past a turbine as the tide changes

  3. Turbine spins a generator

  4. Generator produces electricity