1. Equilibrium and Feedback

2. Equilibrium / Equilibria
Equilibrium means balance.
A system that does not tend to undergo any change of its own accord but remains in a single, fixed state is said to be in equilibrium.

3. Types of equilibrium
Static Equilibrium
Steady-State equilibrium

4. Steady-State Equilibrium
an average condition where the overall situations remains fairly constant.
Over time, inputs into the system equals output, so there is no net change.

5. Feedback
In order for a system to maintain a steady state, it must be able to self regulate.
Self regulation is usually controlled by negative feedback and positive feedback mechanism.
A system will not usually exist in steady state.

6. Types of feedback Positive feedback : Negative feedback:
seeks to increase the output that caused it
Negative feedback:
seeks to cancel the output that caused it