On completion of this lesson, students should be able to:
Energy is the capacity of doing work. Whenever an object is capable of doing work. We are capable to do any kind of work only if we have some energy. This note has short introduction on energy and its types.
The sources of energy, which can not be replaced quickly or another times if it is used once is called non renewable source of energy. This note provides an information about different types of nonrenewable natural resources.
The sources of energy, which can never be exhausted and can be replaced quickly if it is used once is called renewable source of energy. This note provides information on different types of renewable natural resources of energy.