Chemistry / Unit 4 Chem 0633 short lesson, about 20 seconds
Heat
Captions available
The idea
Heat is the transfer of thermal energy that flows between two bodies placed at different temperatures.
In practice
A warm hand cupped around a snowball transfers heat into the ice until the snowball melts and the hand cools.
Where people slip
Heat names a transfer already in progress, never a fixed quantity a body "contains" once it reaches thermal equilibrium.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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