1.2 Systems & Models Flashcards
(9 cards)
1
Q
System
A
Sets of interacting or independent components
2
Q
Open system
A
Exchanges matter and energy (e.g., forest)
3
Q
Closed system
A
Exchanges energy only (e.g., Earth)
4
Q
Flows
A
Processes that may be either transfers or transformations
5
Q
Negative feedback
A
Output inhibits the same process to reduce change (stabilizing)
6
Q
Positive feedback
A
Disturbance amplifies itself, destabilising the system
7
Q
Tipping point
A
Small changes cause large shifts in equilibrium
8
Q
Model
A
Simplified representation of reality used to predict outcomes
9
Q
Emergent properties
A
New traits arising from system interactions (e.g., schooling fish behaviour)
