Law of Conservation of Energy states that, “Energy can neither be created nor be destroyed. It can only be transferred from one state to another.” For example, a burning candle transforms chemical energy into light & heat energy.

Let’s try and understand energy in simpler terms. It is simply something which we require to carry out our day-to-day activities. We require energy to study, to play games, to climb up or down the stairs. In fact, we need energy to eat food as well. Hence, we can define energy as the capacity to do work. It can exist in various forms such as