Final answer:
Energy is the ability to do work or cause change, it can exist in various forms such as kinetic and potential, and follows the law of conservation of energy, meaning it cannot be created or destroyed.
Step-by-step explanation:
When discussing energy, there are several key truths we can state:
- Energy is the ability to do work or cause change.
- There are various forms of energy, such as kinetic energy (energy of motion), potential energy (stored energy, for example, due to the position of an object), electrical energy, heat energy, and light energy.
- The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.
This principle is fundamental in understanding how energy flows and is transferred, particularly in biological systems and the physical world.