Overview
This lecture introduces the concepts of energy transfer and transformation, explaining how energy moves and changes forms in everyday situations.
Energy Transfer
- Energy transfer is the movement of energy from one location to another.
- Examples include electricity moving from a wall plug to an appliance and thermal energy moving from a stove to a pot.
Energy Transformation
- Energy transformation is the process of changing energy from one form to another.
- A fan transforms electrical energy into kinetic energy.
- A flashlight transforms chemical energy into light energy.
- Automobiles transform chemical energy into kinetic energy.
- Solar panels transform solar energy into electrical energy.
Law of Conservation of Energy
- Energy cannot be created or destroyed; it can only be converted from one form to another.
- The total amount of energy remains constant during transfers and transformations.
Key Terms & Definitions
- Energy Transfer — The movement of energy from one place to another.
- Energy Transformation — The process of converting energy from one form to another.
- Law of Conservation of Energy — Principle stating energy can neither be created nor destroyed, only transformed.
Action Items / Next Steps
- Review examples of energy transfer and transformation from everyday life.
- Understand and memorize the law of conservation of energy.