Energy is the ability to do work or cause change. It’s a fundamental concept in physics and is present in everything we do—moving, heating, lighting, growing, and even thinking.

Types of Energy

1. Kinetic Energy
   Energy of motion.
   Example: A moving car, flowing water, blowing wind.

2. Potential Energy
   Stored energy due to position or condition.
   Example: Water stored in a dam, a stretched rubber band.

3. Thermal Energy (Heat)
   Energy from the movement of particles.
   Example: Fire, boiling water.

4. Chemical Energy
   Stored in chemical bonds.
   Example: Food, batteries, fuel.

5. Electrical Energy
   Energy from moving electric charges.
   Example: Electricity in wires powering appliances.

6. Nuclear Energy
   Energy stored in the nucleus of atoms.
   Example: Nuclear power plants.

7. Light (Radiant) Energy
   Energy carried by light waves.
   Example: Sunlight.