4.2 describe energy transfers involving the following forms of energy: thermal (heat), light, electrical, sound, kinetic, chemical, nuclear and potential (elastic and gravitational)

  • Electrical energy  – when current flows
  • Light energy – From the sun, light bulbs (wherever light is given off)
  • Sound energy – noise
  • Chemical energy – In foods, fuels and batteries
  • Kinetic energy – movement
  • Nuclear energy – energy released in nuclear reactions
  • Thermal energy – the flow from hot –> cold
  • Gravitational Potential energy – anything with the potential to fall due to gravity
  • Elastic potential energy – Anything that can stretch

Elastic, gravitational and chemical energy are types of stored energy – the energy doesn’t do anything till it’s been ‘activated’.

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