Question

according to the law of conservation of energy, which statement must be true? a. energy that is transformed is neither destroyed nor created b. energy can change only from nuclear to chemical c. there is only one form of energy d. the total energy in a system can only increase over time

Explanation:

The law of conservation of energy states that energy cannot be created or destroyed, only transformed or transferred. Option A aligns with this principle. Option B is incorrect as energy can transform between many forms, not just nuclear - chemical. Option C is wrong since there are multiple forms of energy like kinetic, potential, etc. Option D is false because the total energy in a closed - system remains constant according to the conservation law.

Answer:

A. Energy that is transformed is neither destroyed nor created