systems Flashcards
inputs
where matter or energy is added to the system
outputs
where matter or energy leaves the system
stores
where matter or energy builds up in the system
flows
where matter or energy moves in the system
boundaries
limits to the system (e.g watershed)
what is an open system
when systems receive inputs and transfer outputs of energy or matter with other systems
what is a closed system
when energy inputs equal outputs
what’s meant by dynamic equilibrium
inputs equal outputs despite changing conditins
when does positive feedback occur?
when a chain of events amplifies the impacts of the original event
what does negative feedback refer to
a chain of events that nullifies the impacts of an original event leading to dynamic equilibrium
on a local scale carbon and water cycles are both…….
open systems
on a global scale carbon and water cycles are……..
closed systems
what does each systems contain?
flows/transfers, inputs, outputs and stores/components
