energy stores & systems

• | energy is transferred between STORES

  • energy is STORED in an object’s energy store
  • energy is transferred mechanically, electrically, by heating or radiation
• | energy stores u need to know

  1. thermal
  2. kinetic
  3. gravitational potential
  4. elastic potential
  5. chemical
  6. magnetic
  7. electrostatic
  8. nuclear
• | system change = energy transfer

  • system = single/group object(s)… of interest
  • when a system CHANGES, energy is transferred
  • CLOSED SYSTEMS are systems where energy can’t enter or leave
  • overall change in total energy is always zero in a closed system