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6. Define dynamic equillibrium
- The inputs are not level to the outputs in the system.
- When the system is not in a state of balance.
- The state of balance in a system, where both the level of inputs and outputs are equal.
- The level of inputs and outputs are not equal.
7. What is an isolated system?
- A system that transfers both energy and material.
- They have no interaction with anything outside of the interaction boundary. No input of energy or matter.
- A system that is closed.
- A system that has interactions outside of the system boundary.
8. What is a closed system?
- A system that transfers only matter into and beyond the system boundary.
- A system that transfers energy into and outside of the system boundary, does NOT transfer matter.
- A system that transfers both energy and matter into and beyond the system boundary.
- A system that has interactions only outside of the system boundary.
9. identify one incorrect charcteristic of systems
- Systems accuratley show the reality of what is happening in systems.
- Systems are a generalisation of reality- give an idea of what is happening in a system, but the reality is more detailed.
- Only SOME systems exchange energy/matter beyond their defined boundary.
- Different parts of the system are connected and intergrated together.