paper 1

• Energy store


  The different ways in which energy can be stored, including chemical, kinetic, gravitational potential, elastic potential and thermal stores
• Energy can be described as being in different 'stores'. It cannot be created or destroyed but it can be transferred, dissipated or stored in different ways
• Energy transfers


  1. Mechanical work - a force moving an object through a distance

  2. Electrical work - charges moving due to a potential difference

  3. Heating - due to temperature difference caused electrically or by chemical reaction

  4. Radiation - energy transferred as a wave, eg light and infrared