Heat - What is conduction?
What is conduction?
Conduction is the flow of heat through a solid. When you walk on a hot sidewalk, the concrete warms—or burns—your feet through conduction. When a warmer substance with quickly moving molecules (the sidewalk) comes into contact with a cooler substance with slowly moving molecules (your bare feet), the faster molecules bump into the slower ones and make them move faster, too.
As the slower molecules pick up speed, the cooler substance gets warmer. The warmer substance loses some of its heat energy and gets cooler. Heat energyThe energy produced when two substances that have different temperatures are combined. is the energy produced when two substances that have different...
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