The forms of energy and their changes
If you look around you, you will notice that everything needs the energy to do their functions. You need food to obtain the energy that helps you to work, move, play, …..etc, Your car needs the fuel to obtain the energy that causes the motion of its engines.
Do you know what is the meaning of the energy?
Energy is the ability to do work.
The forms of energy
- There is kinetic energy produced by the electric fan and the washing machine.
There is light energy produced by the electric lamp or the Sun.
There is heat energy produced by the heater.
There is chemical energy stored in the battery.
There is sound energy produced by the piano and the radio.
Examples of some changes of the energy
|Some changes of energy|
The kinetic energy changes into the heat energy, When you rub your hands, when you hammer on a piece of iron, and when you remove a nail from a piece of wood.
The electric energy changes into the kinetic energy as in the electric fan, the electric motor & the washing machine.
The light energy change into heat energy as in the solar heater.
The light energy changes into electric energy as in the solar cells.
The chemical energy changes into electric energy as in the battery.