Energy in appliances

• Energy Transfers in Appliances

  • The amount of energy an appliance transfers depends on:
  • How long the appliance is switched on for
  • The power of the appliance
  • A 1 kW iron uses the same amount of energy in 1 hour as a 2 kW iron would use in 30 minutes
  • A 100 W heater uses the same amount of energy in 30 hours as a 3000 W heater does in 1 hour