Flow Rate: Definition & Equation


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In a pipe that has a cross-sectional area of 0.5 m2 and a flow rate of 1.5 m3/s, what is the average speed of the fluid carried by the pipe?

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1. Flow rate Q is equal to the _____ of fluid that passes through a slice of a pipe (or other container carrying moving fluid) each second.

2. The figure below shows water flowing in an open channel, like a canal or a drainage. The average speed of the water is 0.5 m/s. If the depth of the water d is 0.5 m and the width of the channel L is 2.5 m, then what is the flow rate of the channel? You may assume that any cross-section of the channel is rectangular.

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About This Quiz & Worksheet

Flow rate is a mathematical concept with many real-world applications, and this quiz/worksheet pairing will help test your knowledge and ability to find flow rate. Quiz questions revolve around practice problems for finding flow rate, definitions, and feature of flow rate.

Quiz & Worksheet Goals

In this assessment you'll be tested on:

  • Features of flow rate
  • Practice problems with given values
  • Measurements flow rate can affect

Skills Practiced

  • Problem solving - use acquired knowledge to solve flow rate problems
  • Information recall - access the knowledge you've gained regarding flow rate
  • Knowledge application - use your knowledge to answer questions about flow rate

Additional Learning

To learn more about flow rate, review the corresponding lesson Flow Rate: Definition & Equation. The lesson covers the following topics:

  • Definition of flow rate
  • Features of fluidity
  • Non-uniform flows
  • Inflow and outflow
  • Conservation of fluid