The Conservation of Energy: Nothing Ever Disappears

The Golden Rule – Energy can’t be created or destroyed; it only changes form.
Always Present – No matter what happens, the total amount of energy in the universe stays the same.
Transformations Everywhere – A light bulb turns electrical energy into light and heat, not into “nothing.”
Roller Coaster Ride – Potential energy at the top becomes kinetic energy as the cars rush downward.
Bouncing Ball – A ball never bounces back as high because some energy changes into sound and heat.
Food to Fuel – Eating transfers stored chemical energy into motion, warmth, and even thought.
Engines at Work – Car engines transform chemical energy in fuel into motion and heat.
Nature’s Recycling – Sunlight becomes plant energy, which becomes food energy, showing energy’s endless cycle.
Even in Space – Stars turn nuclear energy into light and heat, but the energy itself never vanishes.
The Big Picture – Conservation of energy is one of physics’ unbreakable laws, ruling motion, life, and the cosmos.