Definitions (Source of Energy)

SOURCE OF ENERGY

Energy: The capacity of doing work is called energy.

Fuel: The things which can be burnt to produce energy are called fuel.

Primary source of energy: those sources of energy, which can be used in the same form as they are found in nature, are called primary sources of energy.

Secondary sources of energy: Those sources of energy, which are derived from primary sources of energy, are called secondary sources of energy.

Renewable source of energy: Those sources of energy which can be obtained continuously and can be used again and again is called renewable source of energy.

Non-renewable sources of energy: Those sources of energy which get depleted and cannot be used again and again is called non-renewable sources of energy.

Fossil Fuel: The fuel which is obtained from the fossils of dead plant and animals preserved under the earth crust is called fossil fuel.

Nuclear reaction: The reaction in which the nucleus of an atom undergoes a change forming new atoms and releasing tremendous amount of energy is called nuclear reaction.

Nuclear fission reaction: The type of nuclear reaction in which a heavy nucleus splits into two or more light nuclei with the release of large amount of energy is called nuclear fission reaction.

Nuclear fusion reaction: The type of reaction in which two light nuclei combine or fuses together to form a heavy and stable nucleus is called nuclear fusion reaction.

Chain reaction: The reaction in which a particle which starts the reaction is also produced during the reaction to carry out reaction again and again is called chain reaction.

Nuclear fuel: The radioactive element like uranium, plutonium etc. which are used in nuclear reactor to produce heat energy is called nuclear fuel.

Hydroelectricity: The electricity generated by rotating turbines with the help of kinetic energy of water is called hydroelectricity.

Biomass: Biomass is any organic materials that can be converted into energy.

Biogas: The gas produced by anaerobic decomposition of animal wastes like dung or plants wastes in the presence of water is called biogas.

High Tide: The rise of ocean level due to the attraction of the moon and the sun is called high tide.

Wind: Fast moving air is called wind.

Tidal energy: The energy generated from the tides of sea is called tidal energy.

Wind Energy: The energy generated from the fast moving air called wind energy.

Geothermal energy: The energy which uses the internal heat of the earth is called geothermal energy.

Solar energy: The energy produced from the sun is called solar energy.

Energy crisis: The situation in which there is acute scarcity of sources of energy is called energy crisis.

Alternative sources of energy: The sources of energy other than non-renewable sources of energy is called alternative source of energy.