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</b>
Some appliances are designed to do both
Appliances have a power rating, which is the rate at which energy is transferred
Power
The rate at which energy is transferred, measured in Watts (Joules per second)
Power ratings of appliances
Fan: 20 Watts
Blender: 400 Watts
Kettle: up to 2200 Watts
Iron: up to 2400 Watts
Appliances designed to generate thermal energy usually have a much higher power rating than those designed to generate kinetic energy
