✅3.1.1.1 - Water and Carbon Cycles as Natural Systems Flashcards Preview

AQA A Level Geography - PHYSICAL > ✅3.1.1.1 - Water and Carbon Cycles as Natural Systems > Flashcards

Flashcards in ✅3.1.1.1 - Water and Carbon Cycles as Natural Systems Deck (22)
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1

What is a system?

An assemblage of interrelated parts that work together by way of some driving force

2

What are elements?

Things that make up the system

3

What are attributes?

The characteristics of the elements eg hot/cold

4

What are relationships?

Descriptions of how the various elements work together to carry out some sort of process

5

What are flows/transfers?

A link between one store or component and another, along something which moves

6

What is a system boundary?

The edge of the system, the interface or line between one system and another

7

What is an input?

A point where something is added to the system

8

What is an output?

A point where something is removed from the system

9

What is a store/component?

A part of the system where something is held for a period of time

10

What is an open system?

One which can exchange energy and matter with its surroundings, input and outputs eg the coastal system

11

What is a closed system?

One which cannot exchange matter with its surroundings, but can exchange energy eg the water cycle

12

What is feedback?

When inputs or outputs suddenly change and stores are forced to change to restore equilibrium

13

What are the 5 subsystems within the Earth as a closed system?

Atmosphere
Biosphere
Cryosphere
Lithosphere
Hydrosphere

14

How to the 5 subsytems interact?

Each operates as an open system with interlocking relationships, known as a cascading system

15

What is an isolated system?

One which has no interactions with anything outside the system boundary, no exchange of energy or matter

16

What is positive feedback?

Where the effects of an action are amplified or multiplied by subsequent knock on or secondary effects

17

What is negative feedback?

Where the effects of an action are nullified by its subsequent knock on effects

18

What is the atmosphere?

The air

19

What is the lithosphere?

The geology

20

What is the hydrosphere?

The water

21

What is the cryosphere?

The ice

22

What is the biosphere?

All the organic life