Energy Transfers

• Heating - because of a temperature difference
• Electrically - work done by a charge moving
• Radiation - a wave such as a light or sound
• Mechanical - by a force doing work
• This is an example of a energy pathway for a torch

  
• This is an example of a energy pathway for a falling apple

  
• "Energy cannot be created or destroyed. It can only be changed from one form to another."

  • Energy can be transferred in more than one form at a time
  • The INPUT energy will always equal the total OUTPUT energy.
  • Nothing is 100% efficient, energy is wasted in the for of THERMAL ENERGY
• “Energy cannot be created or destroyed. It can only be

  changed from one form to another.”
• Energy is wasted in the form of thermal energy and transferred to the surroundings, causing the temperature of the surroundings to go up.