systems Flashcards
1
Q
what is the difference between open and closed system
A
open - energy and matter can enter and leave the system . eg. river drainage basin
closed system - energy can enter and leave a system. matter stays the same within a system. eg. global water cycle
2
Q
what are the subsystems within the earth
A
cryosphere
atmosphere
biosphere
lithosphere
atmosphere
3
Q
what is meant by the term store
A
where matter or energy builds up
4
Q
what is meant by the term boundry
A
limits of a system
5
Q
what is meant if a system is dynamic equilibrium
A
when the system is about balanced in terms of outputs and inputs on average.
6
Q
negative feedback
A
counteract the change in inputs and outputs . makes change . positive change .
7
Q
positive feedback
A
8
Q
A
