According to the fundamental law of physics, energy can be converted but cannot be what?

The correct answer is that energy can be converted but cannot be destroyed, which aligns with the law of conservation of energy. This fundamental principle states that energy cannot be created from nothing or completely eradicated; it can only change forms. For instance, electrical energy can be transformed into thermal energy, mechanical energy, or light energy, but the total amount of energy remains constant throughout this process.

The notion of energy being created is contrary to this law, as it implies that energy can arise from nothing, which is not supported by established physical principles. Similarly, the idea of energy being erased suggests it could disappear entirely, which contradicts the conservation principle. The term 'absorbed' does not accurately capture the nature of energy transformation in this context, as absorption typically refers to processes where energy is transferred into systems, but it does not imply the loss or destruction of energy. Therefore, energy transformation remains fundamental, reinforcing that energy may change forms but cannot be destroyed.