Convection
Also known as: convective heat transfer
Heat transfer through the movement of a fluid (liquid or gas) carrying thermal energy. Drives weather patterns, ocean currents, and is the main mechanism in heating/cooling systems.
💡 Intuition
Hot air rises and cool air sinks — this circulation carries heat through the room.
Core Idea
Convection transfers heat by the bulk movement of matter, unlike conduction which transfers through contact.
🔬 Example
🎯 Why It Matters
Drives weather patterns, ocean currents, and is the main mechanism in heating/cooling systems.
⚠️ Common Confusion
Convection requires a fluid that can flow — it cannot occur in solids, only liquids and gases.
Related Concepts
Prerequisites
Next Steps
How Convection Connects to Other Ideas
To understand convection, you should first be comfortable with heat transfer and temperature. Once you have a solid grasp of convection, you can move on to conduction and radiation.
Go Deeper
Frequently Asked Questions
What is Convection in Physics?
Heat transfer through the movement of a fluid (liquid or gas) carrying thermal energy.
Why is Convection important?
Drives weather patterns, ocean currents, and is the main mechanism in heating/cooling systems.
What do students usually get wrong about Convection?
Convection requires a fluid that can flow — it cannot occur in solids, only liquids and gases.
What should I learn before Convection?
Before studying Convection, you should understand: heat transfer, temperature.