UNIT 1: Systems 1.2

Question 1

System

Answer 1

Interconnected parts working together to function as a whole.

Question 2

Stable Equilibrium

Answer 2

When a system returns to its previous state after a disturbance.

Question 3

Open system

Answer 3

Requires material/energy input

Question 4

Flows

Answer 4

Pathways within the system in which the energy and material can be transferred or transformed

Question 4

Closed system

Answer 4

Only input is it’s energy

Question 5

Feedback Loop

Answer 5

A cycle where information triggers a reaction that leads to further reactions.

Question 6

Positive Feedback Loop

Answer 6

A disturbance amplifies changes, moving the system away from equilibrium.

Question 7

Negative Feedback Loop

Answer 7

A process where outputs reduce changes, stabilizing the system.

Question 8

Tipping Point

Answer 8

The minimum change that shifts a system to a new state of equilibrium.

Question 9

Albedo

Answer 9

The measure of how much a surface reflects, with higher values indicating more reflection.

Question 10

Keystone Species

Answer 10

Species with a large influence on ecosystems, whose loss significantly alters the environment.