Heat Transfer Methods
📋 What it is
Heat always flows from hot to cold by three routes: conduction, convection and radiation.
🗣️ Coach says
Heat never flows "cold to hot" on its own — it always moves from hotter to cooler until they even out. It gets there three ways: conduction (touch), convection (moving fluids), and radiation (waves through space). Most real situations use all three at once.
🧠 Memory hook
Heat flows hot → cold, three ways: conduction (touch) · convection (fluids) · radiation (waves).
😂 Giggle
What did the ice cube say to the boiling water?
"You're making quite a scene — I mean, a phase change!"
😲 Whoa!
A metal spoon and a wooden spoon in the same hot soup are the SAME temperature — the metal just FEELS hotter because it conducts heat into your hand faster.
✅ Quick check: Which direction does heat always flow on its own?
Say your answer out loud first — then reveal.
From hotter to colder — until the two reach the same temperature.
Heat spontaneously flows down a temperature difference.
🧪 Try it! (2 minutes)
Hold a metal spoon and a wooden spoon in warm water — the metal feels hotter because it conducts faster.