Energy

Things to remember

• Energy is the capacity or ability of a body to do work.
• The energy possessed by a body by the virtue of its motion or its position or its configuration is called mechanical energy.
• The energy possessed by a body by the virtue of its motion is called kinetic energy.
• The energy possessed by a body by the virtue of its position or its configuration is called potential energy.
• Electrical energy is the energy possessed by the continuous flow electrons or by the change in the number of electrons in bodies.
• The energy possessed by the magnet or a current carrying conductor that effect on magnetic bodies is called magnetic energy.
• The energy stored in a body, which is released from it, when it undergoes chemical change is called chemical energy.
• Conversion of energy from one form to another form is called transformation of energy.
• Energy can neither be created nor destroyed but can only be changed from one form to other. This is called the principle of conservation of energy.