What happens to energy during a transformation?

• A. It is increased
• B. It is stored indefinitely
• C. It is conserved
• D. It disappears

Answer: (C)

During a transformation, energy undergoes a change from one form to another, but the total amount of energy in a closed system remains constant. This principle is known as the law of conservation of energy. For example, when electrical energy is converted into thermal energy, or when potential energy is transformed into kinetic energy, the total energy before and after the transformation remains unchanged. Each form of energy may serve different functions, but they collectively maintain the same overall quantity.

The other options reflect misconceptions regarding energy: energy does not increase or become stored indefinitely without limits, nor does it simply disappear; it is always present, only changing between different forms. Thus, the understanding that energy is conserved during transformations is crucial for grasping fundamental concepts in physics.