Energy

Energy comes in different forms.There is light,heat,kinetic and chemical potential energy. Energy is needed to work.

Light and Heat

The main source of light and heat energy is the Sun. As the earth is not too far, nor is it too close, from the sun, the light and heat energy received is just right for life on earth. If we were too close, it would be too hot to live on earth.The light energy also allows us to see. Thus, both light and heat energy are important

Kinetic

Kinetic energy is also known as movement. It is motion. Examples of kinetic energy is like a moving car, or a bouncing ball. The mass of the object and the speed of the object both affect the amount of kinetic energy the object has.The greater the mass, the greater the amount of kinetic energy. The greater the speed, the greater the kinetic energy.

Chemical potential energy

Chemical potential energy is the energy stored in living object, or use to be living object. It can be converted into other forms of energy. Plants trap sunlight to make food, which is chemical potential energy. Fossil fuel is burned to produce electricity. This energy allows us to do work.