Systems

Question 1

What are systems composed of?

Answer 1

Inputs, outputs, stores,flows and boundries

Question 2

What is an open system?

Answer 2

Where a system recieves inputs and transfer outputs of energy or matter with other systems - TRANSFER OF BOTH ENERGY AND MATTER

Question 3

What is a closed system?

Answer 3

A closed system are when energy inputs equal outputs - SO THERE IS ONLY A TRANSFER OF ENERGY NOT MATTER

Question 4

What is dynamic equilibrium?

Answer 4

Is when the systems inputs equal outputs despite changing conditions - like digging a whole and someone is filling it at the same time

Question 5

What is positive feedback?

Answer 5

PF occurs when a change of events amplifies the impact of the orginall event - e.g people walking on sand dunes

Question 6

What is negative feedback?

Answer 6

NF refers to a chain of events that nullifies the impact of the orginal event, leading it back to dynamic equilibrium e.g the coastal envrimonet over a time period of a year

Question 7

Is the carbon cycle and water cycle a closed or open system?

Answer 7

On a local sacle it is open but on a global scale it is closed

Question 8

What do both the carbon and water cycle contain?

Answer 8

flows/transfer, inputs,outputs and stores/components