EVERYDAY SCIENCE

Detailed explanation-1: -Energy can neither be created nor destroyed i.e. the total energy of an isolated system remains constant; however, it transforms from one form to another. The same phenomena applies when we burn a candle, chemical energy of wax is spent and converted to light energy.

Detailed explanation-2: -Energy cannot be created or destroyed, but it can be transferred and transformed. There are a number of different ways energy can be changed, such as when potential energy becomes kinetic energy or when one object moves another object.

Detailed explanation-3: -Einstein said, “Energy cannot be created or destroyed, it can only be changed from one form to another". This first law of thermodynamics which also known as Law of Conservation of Energy works in all sphere of life. Several times, we put our hard work and there are no immediate positive results.

Detailed explanation-4: -This law, first proposed and tested by Émilie du Châtelet, means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another. For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes.

Detailed explanation-5: -1st Law of Thermodynamics-Energy cannot be created or destroyed. 2nd Law of Thermodynamics-For a spontaneous process, the entropy of the universe increases. 3rd Law of Thermodynamics-A perfect crystal at zero Kelvin has zero entropy.