By Appliances

• Domestic appliances


  • Transfer electrical energy into other forms of energy
  • Only need to identify transfers to kinetic energy and thermal energy
• Blender and fan


  1. Electrical energy transferred into kinetic energy of electric motors

  2. Thermal energy generated due to friction in motors
• Iron and kettle


  Electrical energy transferred into thermal energy
• Hairdryer and washing machine

  Electrical energy transferred into both kinetic energy and thermal energy
• Power rating


  The rate at which energy is transferred, measured in Watts (Joules per second)
• Appliances designed to generate thermal energy usually have a much higher power rating than those designed to generate kinetic energy