Tag: the essence of change

 A generator converts mechanical energy into electrical energy.  Generator works due to this because of electromagnetic induction generated due to this conversion of energy. Also magnetic field is produced which results in generation of voltage that helps the generator to function.

A motor converts electrical energy into mechanical energy.

A candle burns wax (a chemical substance) through combustion, converting the stored chemical energy into heat and light energy.

During photosynthesis, green plants convert light energy into chemical energy stored in the form of food.

A photocell gives out electric current when light is incident on it. So, it converts light energy into electrical energy.

A microphone converts sound energy into electrical energy. All other devices mentioned convert electrical energy into sound energy.

When a battery is not in use, it does not give out electric current. So, the chemical energy stored in it does not get converted.

A running car burns fuel and thus moves. So, it converts chemical energy into mechanical energy.

By charging a battery, we convert electrical energy into chemical energy. A battery, on the contrary, in use, converts chemical energy into electrical energy.

A loud speaker converts electrical energy into sound energy.