Answer the following

There are a number of devices in common use that change energy from one form to another. Name some devices that change

1. electrical energy into light energy

2. electrical energy into mechanical energy

3. electrical energy into heat

4. sound energy into electrical energy

5. chemical energy into electrical energy.

1. A light bulb and LED are used to convert electrical energy into light energy.

2. A motor is used to convert electrical energy in mechanical energy. For e.g. motor in a fan and pump.

3. Electric iron and electric strove are used to convert electric energy in potential energy.

4. Microphone converts sound energy into electrical energy

5. A battery is a device that stores electrical energy in the form of chemical energy and converts that energy into electricity.