# Sound in a Tube

## Sound waves trapped in a tube generate sounds a frequencies dependent on the length of the tube.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Sound in a Tube

by CK-12 //at grade
Students will learn how to analyze and solve problems where standing waves (and hence sound) is produced in a tube.
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## Unit 11.3 Sound in a Tube

by Scott //at grade
Students will learn how to analyze and solve problems where standing waves (and hence sound) is produced in a tube.
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• Interactive Simulations

## Pan Flute

by CK-12 //at grade
Learn about wave harmonics in a column of air by looking closely at the sound produced by a pan flute.
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• Video

## Harmonics 2: Standing Waves in a Closed Air Column - Overview

by CK-12 //basic
Overview
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• Video

## Sound in an Open Pipe: Demonstration

by CK-12 //at grade
An demonstration is used to gather data on the frequency of sound in a tube.
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• Video

## Harmonics 3: Standing Waves in an Open Air Column - Overview

by CK-12 //basic
Overview
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## Sound in an Open Pipe: Explanation

by CK-12 //at grade
The physics behind sound in a tube and the different harmonic frequencies created by such reverberations are explained.
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## Harmonics 2: Standing Waves in a Closed Air Column - Example 3

by CK-12 //basic
Determining harmonic (resonant) frequencies using the equation f[n] = nv / 4L or f[n­ ]= nf[1] for any odd integer n
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## Harmonics 3: Standing Waves in an Open Air Column - Example 3

by CK-12 //basic
Determining harmonic (resonant) frequencies using the equation f[n] = nv / 2L or f[n­ ]= nf[1] for any integer n
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• Video

## Harmonics 2: Standing Waves in a Closed Air Column - Example 1

by CK-12 //basic
Determining the length of a tube based on the standing wave frequency or wavelength
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## Harmonics 2: Standing Waves in a Closed Air Column - Example 2

by CK-12 //basic
Determining harmonic (resonant) wavelengths using the equation λ[n] = 4L/n or λ[n] = λ[1]/n for any odd integer n
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• Video

## Harmonics 3: Standing Waves in an Open Air Column - Example 1

by CK-12 //basic
Determining the length of a tube based on the standing wave frequency or wavelength
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• Video

## Harmonics 3: Standing Waves in an Open Air Column - Example 2

by CK-12 //basic
Determining harmonic (resonant) wavelengths using the equation λ[n] = 2L/n or λ[n] = λ[1]/n for any integer n
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• Critical Thinking

## Sound in a Tube Discussion Questions

by CK-12 //at grade
A list of student-submitted discussion questions for Sound in a Tube.
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