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B1 Ch 3 Lesson 4
Models as Tools
Term | Definition |
---|---|
Model | A representation of a complex object or process, used to help people understand a concept that they cannot observe directly. |
System | A group of related parts that work together to perform a function or produce a result. |
Input | Material, energy, or information that goes into a system. |
Process | A sequence of actions in a system. |
Output | Material, energy, or information that comes out of a system. |
Feedback | Output that changes a system or allows the system to adjust itself. |