Three Ways Heat Escapes
📖 Three Ways Heat Escapes
Conduction is like passing hand-to-hand in a line — each person touches the next, energy passes along, but nobody moves from their spot. Convection is like a relay race — the carrier physically moves to deliver the energy. Radiation is like throwing the ball across an empty field — nothing in between, but energy still arrives at the destination!
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🧠 Memory Aid: The Three Methods
Remember the three methods with: CCR — Conduction, Convection, Radiation
To remember what each one needs: "Conduction needs Contact (particle to particle), Convection needs Currents (fluid moves), Radiation needs Nothing (works in vacuum)"
Black body memory: "Black absorbs, Black emits" — both absorption and emission are maximised by black, matt surfaces.
Now try it yourself
Quiz · Question 1 of 14
Which method of thermal energy transfer occurs mainly in solids?
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This topic in real past papers
Every real exam question we've found on heat transfer, with a full worked answer.