Dynamics ( systems )

Feedback loops

Inflows

A city's reservoir contains 500 million gallons of water on Monday morning. Throughout the week, an average of 10 million gallons of water are added to the reservoir each day from a river, and the city consumes an average of 12 million gallons of water per day. Which of the following figures represents a flow?

Evaluating a Financial Metric

Match each economic or environmental metric to its correct classification as either a quantity measured at a specific point in time or a quantity measured per unit of time.

Analyzing Inventory Changes at a Coffee Shop

A company's balance sheet, which reports its financial position on a specific date (e.g., December 31st), is a financial statement that primarily summarizes the company's flows, such as total sales revenue for the year.

A company's quarterly earnings report details its profit over the last three months. This profit figure is an example of a(n) ______ because it is a quantity measured over a specific period of time.

Analyzing National Debt Dynamics

A news report states: 'The national unemployment rate fell to 3.5% this month, as 250,000 new jobs were created, bringing the total number of employed people to 161 million.' Which element of this statement represents a quantity measured per unit of time?

Analyzing Personal Financial Data

The Bathtub Model and the Accelerating Imbalance of Atmospheric CO2

Definition of Outflow (Systems)

Definition of a Stock-Flow Diagram