Work, Energy and Power III
Physics SS1 First Term
Work, Energy and Power
Students should be able to:
1. List the types of energy
2. Explain the conservation of mechanical energy
3. List the world energy resources.
Types of Energy (Mechanical)
Under mechanical energy, there are two classifications i.e. Potential and Kinetic energy.
Potential Energy (P.E)
This is simply ‘stored energy’ or the energy possessed by a body by virtue of its position or state.
Such stored is used to do work when the body is free to move. A heavy note on top of a table has potential energy. When allowed to fall on to a glass plate on the floor, it will shatter the plate. The potential energy of the plate due to its position above the floor is expended in shattering the plate.
A body may have a potential energy due to its position in a force field, if the force field is the gravitational field then the body is said to possess a gravitational potential energy..... View More
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