Energy Transfer by Appliances

Cards (8)

  • Domestic appliances

    • Transfer electrical energy into other forms of energy
    • Only need to identify transfers to kinetic energy and thermal energy
  • Blender and fan
    Electrical energy transferred into kinetic energy of electric motors
  • Iron and kettle
    Electrical energy transferred into thermal energy
  • Hairdryer and washing machine
    Electrical energy transferred into both kinetic energy and thermal energy
  • Appliances can be divided into two main categories: those that transfer electrical energy into kinetic energy, and those that transfer electrical energy into thermal energy
  • Some appliances are designed to do both
  • 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