Question

According to law of conservation of energy :

• A. energy can be created but not destroyed and it can be transformed from one form into another
• B. energy exists in only one form
• C. energy exists in many forms but it cannot be transformed
• D. energy can neither be created nor be destroyed but can be changed into different forms

Answer 1

The correct option is D energy can neither be created nor be destroyed but can be changed into different forms

$Lawofconservationofenergy$ states that the total energy of an isolated system remains constant and it is said to be conserved over time. Energy can neither be created nor be destroyed, but it can be transformed from one form to another, for instance, chemical energy can be converted to kinetic energy in the explosion of a stick of dynamite.