Systems: Open and Closed
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
A system is the matter and energy under study; an open system exchanges both matter and energy with its surroundings, while a closed system exchanges energy alone.
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A living cell is open, constantly trading nutrients and wastes with its environment while also exchanging energy.
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A closed system is not isolated — it still exchanges energy freely, only matter stays sealed in.
Builds on
- Nothing — this is a starting point.