How Energy Moves and Changes

Thermodynamics is the study of how heat and energy flow and transform. It explains why ice melts in a drink or why engines get hot.

Laws of Thermodynamics

• First Law: Energy can't be created or destroyed, only transformed.
• Second Law: Heat naturally flows from hot to cold objects.
• Third Law: It’s impossible to reach absolute zero temperature.

Heat Transfer

• Conduction: Direct transfer through contact.
• Convection: Transfer by movement of fluids (liquids/gases).
• Radiation: Transfer through electromagnetic waves.

Everyday Impact

• Refrigerators use thermodynamics to keep food cold.
• Insulation in homes reduces unwanted heat transfer.

Why It Matters

Understanding thermodynamics helps us design engines, refrigerators, and even weather forecasts!