Final answer:
The answer to the student's question is A. transformed, as the law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.
Step-by-step explanation:
Most activities involve one form of energy being transformed to another form. The correct answer is A. transformed. This concept is an application of the law of conservation of energy, which asserts that energy can be neither created nor destroyed, but only changed in form. For example, in biological systems, plants convert light energy from the sun into chemical energy through photosynthesis, while humans may convert the chemical energy in food into kinetic energy for movement.
Various instances showcase this transformation, such as:
- Kinetic energy being transformed into potential energy when an object is lifted against gravity.
- Potential energy being transformed back into kinetic energy when the object is released.
- Work being done on an object, which then moves and thus converts work into kinetic energy.
- A machine or organism using kinetic energy to perform work.
This fundamental principle is echoed across all energetic exchanges and underscores the core concept that while energy forms are mutable, the total energy content remains conserved.