System Concepts

Question 1

Define isolated system.

Answer 1

A system with no inputs or outputs of energy or matter.

Question 2

1) Define closed system.

2) What are some examples of closed systems?

Answer 2

1) A system with inputs and outputs of energy but not matter.

2) Water Cycle, Carbon Cycle.

Question 3

1) Define open system.

2) What are some examples open systems?

Answer 3

1) A system with inputs and outputs for both energy and matter.

2) Drainage basin systems.

Question 4

What is dynamic equilibrium?

Answer 4

when a systems inputs are equal to the systems outputs.

Question 5

1) What is feedback in dynamic equilibrium?
2) What is positive feedback?
3) What is negative feedback?

Answer 5

1) A change in the systems elements that affects the inputs or outputs of a system upsetting the equilibrium.
2) positive feedback is when the system expiriences further disruption upsetting the equilibrium.
3) Negative feedback is when the system stabalises allowing it to maintane its dynamic equilibrium

Question 6

What are flows?

Answer 6

The movement of matter from one place to another.