What is energy? Energy is the ability of an object to transform itself or to produce changes in other objects.
Types of energy Kinetic energy: exists as movement. Potential energy: exsits as potential movements. Chemical energy: is stored in certain chemical substances. Electrical energy: is energy in the form of electricity. Thermal energy: is energy in the form of heat.
Types of energy Light energy: is energy in the form of light. Nuclear energy: is stored in the atomic structure of all matter.
Energy transformation Energy can change from one type to another. You can`t create or destroy energy.
Non renewable energy Non renewable sources are limited because nature doesn`t replace them. They also cause pollution.
Types of non renewableenergy Ucranium: is a radioactive material. Petroleum: is a black liquid that forms underground. It is used to make fuel oil, diesel fuel and petrol. Coal: is a black rock. Coal is used as a fuel. Natural gas: is a mixture of gases that forms naturally underground. Many people also use gas to heat water and cook.
Renewable energy Renewable sources of energy are unlimited because they are replaced naturally.
Types of renewable energy Hidraulic energy: water that is moving. Solar energy: from the Sun. Biofuels energy: from plants and animals. Wind energy: from the movements of the air.