SOURCES OF ENERGY

• Non-Renewable Energy

A source of energy which is not renewable is the source of energy which cannot be regenerated when it is used. Examples of non-renewable energy is fossil fuel. Fossil fuel are also called conventional fuel.

• Renewable Energy

Source of energy which is renewable is the source of energy which can be regenerated when it is used up. Nowadays, renewable energy is used as an alternative energy to replace conventional energy and fossil fuels. the sources of alternative energy are, for example, wind energy, waterfall energy, solar energy, nuclear energy, tidal energy, geothermal energy, and biomass energy.

WIND ENERGY:

Wind energy is one of many renewable sources of energy, because it always available in nature. back then, windmills are used to grind and to pump water. Nowadays, windmills are used to drive electric generators to produce electricity.

WATERFALL ENERGY:

Moving water can rotate turbine which further produces electricity. There are Potential and Kinetic energy acting upon it to generate electricity in a hydroelectric power plant. An artificial waterfall can be built by constructing a dam. A dam can help to generate electricity in hydroelectric power plant.

SOLAR ENERGY

Solar energy is easy to get and pollution-free. there are two methods of collecting solar energy; they are a passive and an active method.

•  PASSIVE METHOD:

 Passive method has been used since a long time by the Romans to heat up their bathing water. Nowadays, glass windows are placed in buildings to get the warmth from solar energy.

• Active Method:

The active method, uses solar panels to collect and store solar energy. the solar energy panels transforms solar energy into thermal energy. Solar panels are made up of black plates covered by transparent glass or plastics.

NUCLEAR ENERGY

Hiroshima and Nagasaki were destroyed by an atomic bomb. that huge source of energy came from energy release generated by the splitting of the atomic nucleus. The reaction is called Fission. This fission produces a huge amount of energy called nuclear energy. Nowadays, nuclear energy is used for electric power plant, and usually called a nuclear power plant.

FISSION:

The operation of a nuclear power plant is based on fission. Fission is the splitting process of a heavy nucleus into two little nuclei.