What is Hydroelectricity? Water is one of the renewable sources of energy. Energy can be produced by means of water current and tide and ebb. There are different…
Explain Prime Sources of Energy The modem mechanized civilization cannot proceed a moment without energy. Work is available at the expense of energy. Uninterrupted energy supply is essential for the…
Mathematical Example: Potential Energy The ability of a body to do work when its normal position or configuration is changed to some other position or configuration is called potential…
What is Potential Energy? If a piece of stone or brick falls on a body from the roof of a building it may flatten or break the body. When…
Kinetic Energy: Mathematical Example Kinetic energy depends on the mass of object. The more is the mass the higher is the kinetic energy. With the same velocity a light…
What is Kinetic Energy? We sometimes notice that cricket ball hits the stamp and strikes it down. If anything hard hits the glass window the glass breaks down. If…
Different forms of Energy We need different forms of energy for doing different kinds of work. For example we need heat to boil water. We get light energy from…
Define Energy in Terms of Physics Nothing can move or work without energy. We need energy for our survival. The amount of work we do everyday depends on our energy level.…
Unit of work: Mathematical Example The unit of work is obtained by multiplying the unit of force with unit of distance. Since the unit of force is Newton (N) and…
Define Work in Terms of Physics Work means to do something in our everyday life but in science doing anything is not work. In science the term work represents a definite…