1.1.9 Changes in Energy

• Energy Stores

  • Kinetic Energy
  • Gravitational Potential Energy
  • Elastic Potential Energy
  • Thermal Energy
  • Chemical Energy
  • Electrostatic Energy
  • Magnetic Energy
  • Nuclear Energy
• Kinetic Energy


  Energy stored in moving objects
• Gravitational Potential Energy

  Energy stored in an object due to its position in a gravitational field
• Elastic Potential Energy


  Energy stored when an object is stretched or compressed
• Thermal Energy

  Energy stored in an object due to the movement of its particles (related to temperature)
• Chemical Energy

  Energy stored in chemical bonds, released during chemical reactions
• Electrostatic Energy


  Energy stored between two charges due to their positions
• Magnetic Energy

  Energy stored when like poles are pushed closer together or opposite poles are pulled apart
• Nuclear Energy

  Energy stored in the nucleus of an atom, released in nuclear reactions
• Energy Transfers

  • Mechanically
  • Electrically
  • By Heating
  • By Radiation
• Mechanically

  When a force moves an object