1.A.1 - Systems Flashcards
What is a system?
A set of interrelated components working together towards some kind of process.
What is an open system?
Where matter and energy can be transferred from the system into the surrounding environment.
What is a closed system?
They have transfers of energy both into and beyond the system boundary but not transfer of matter.
What is an input?
The addition of matter and/or energy into a system
What is an output?
The removal of matter and/or energy out of a system
What is energy?
The ability to do work.
What is a store/component?
A part of the system where energy/mass is stored or transformed.
What are flows/transfers?
A form of linkage between one store/component and another that involves movement of energy or mass.
What is positive feedback?
Where the effects of an action are multiplied by subsequent knock-on or secondary effects.
What is negative feedback?
Where the effects of an action are nullified by its subsequent knock-on effects.
What is dynamic equilibrium?
A balance between inputs and outputs; stores say the same.
