Systems and Feedback Loops

Front

What is a system?

Back

A system is made up of parts that work together to achieve a common goal.

Front

What is the difference between an open-loop and a closed-loop system?

Back

An open-loop system does not use feedback to adjust its operation, while a closed-loop system uses feedback to make adjustments.

Front

What is a positive feedback loop?

Back

A positive feedback loop is a process where each action amplifies the next action, leading to an increase in the effect.

Front

What is a negative feedback loop?

Back

A negative feedback loop is a process that counteracts changes, helping to maintain stability in a system.

Front

Give an example of a negative feedback loop in the human body.

Back

Maintaining body temperature is an example of a negative feedback loop.

Front

What happens in a positive feedback loop?

Back

In a positive feedback loop, each action creates a consequence that amplifies the other action.

Front

What is an example of a positive feedback loop in nature?

Back

An example of a positive feedback loop is the process of childbirth, where contractions lead to more contractions.

Front

How does increased evaporation affect climate change?

Back

Increased evaporation can lead to more clouds, which can reflect sunlight and potentially cool the Earth.

Front

What role does feedback play in systems?

Back

Feedback helps systems adjust their operations based on the outcomes of previous actions.

Front

What is albedo?

Back

Albedo is the measure of how much light that hits a surface is reflected without being absorbed.