What is Energy? Energy is the ability to do work or cause change. Forms of energy include kinetic, potential, thermal, and chemical energy.
Types of Energy 1. Kinetic Energy: Energy of motion 2. Potential Energy: Stored energy due to position 3. Thermal Energy: Energy due to the temperature of an object 4. Chemical Energy: Stored in chemical bonds
Law of Conservation of Energy Energy cannot be created or destroyed, only transformed from one form to another. Example: In a roller coaster, potential energy is converted to kinetic energy and vice versa.
Renewable vs Non-Renewable Energy Renewable Energy: Resources that can be replenished (solar, wind, hydro). Non-Renewable Energy: Finite resources like fossil fuels (coal, oil, natural gas).