Description of Energy

Appear in different forms - heat (thermal), light (heat), mechanical, electrical, chemical, and nuclear energy. Energy in all things. We use energy to do all that we do, from making direct shot to baking our favorite cookies to sending astronauts to the space - energy is there, so we have the power to do it all. There are two types of energy - stored (potential) and labor (kinetic) energy. For example, eating food that contains chemical energy, and your body stores this energy until you release when you work or play. Learn more about the various forms of energy.

What the kind of Energy ?

All forms of energy that is stored in various ways, the energy source that we use every day. These sources are divided into two groups :

• Renewable Energy (an energy source that can be replenished in a short time).
• Nonrenewable Energy (an energy source that we used up and can not return in a short time).

Both of them can be used to produce secondary energy sources including electricity and hydrogen.

Sources of energy including solar energy that comes from the sun and can be changed into heat and electricity. Wind, geothermal energy from the earth, biomass from plants, and hydropower and energy from the sea water is also a source of energy.

However, we get most of our energy from nonrenewable energy sources, including the fossil fuels - oil, natural gas, and coal. They're called fossil fuels because it was formed during the millions and millions of years by the action of heat the Earth's core and pressure from rock and soil in permanent (or "parents") of plants and animals die. Nonrenewable energy sources are uranium elements, we split the atom (via a process called nuclear fission) to create heat and ultimately electricity.

What are the energy used for ?

• We use all energy sources to generate electricity that we need for our homes, businesses, schools, and factories. Electricity "energizes" our computers, lights, refrigerator, washing machine, and AC, to name only a few uses.
• We also use our energy to run cars and trucks. Both the gasoline used in cars, and solar used in the truck that is made from oil. Propane fuel that is outside our grills and hot air balloon is made of light oil and natural gas.