S. Coghlan Physics 12 S. Coghlan This concept map is designed to help you; Understand how the various different parts of sound link together. Study the.

S. Coghlan

Physics 12

S. Coghlan

This concept map is designed to help you;

Understand how the various different Understand how the various different parts of sound link together.parts of sound link together.

Study the whole section of workStudy the whole section of work ..

Main Concepts

Linking words

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Sound

Longitudinal wave characteristics

Standing waves - a reflection phenomena

Interfere Properties

Resonance Natural vibrations

shows may produce

may produces has

may produce

Sound

Longitudinal wave characteristics

shows

Propertieshas

Standing waves - a reflection phenomena

may produce

Interfere

may

Resonancemay produce

Natural vibrations

produces

Sound

Longitudinal wave characteristics

shows

Propertieshas

Resonancemay produce

Natural vibrations

produces

Phase, degrees or radians

Amplitude Intensity

Level, dB Inverse square

Frequency, 20-20000 Hz

Doppler effect Wavelength

include changes

hearing W m-2

Sound

Longitudinal wave characteristics

shows

IntensityFrequency20-20000 Hz

Wavelength

Level, dBInverse square

include

Doppler effect

Propertieshas

Resonancemay produce

Natural vibrations

produces

AmplitudePhase, degrees or radians changes

hearingW m-2

Sound

Longitudinal wave characteristics

shows

Propertieshas

Standing wavesa reflection phenomena

Reflection EchoReverberation RefractionFST - warm to cool airSFA - cool to warm air DiffractionWavelength opening PipesDisp antinode = Pressure nodeClosed - Alternate harmonics only 1,3,5….Open - All harmonics possible 1,2,3….Strings 1st harmonic - fundamental2nd harmonic All possible

single multi max

bending include in

have can be can be

in vibration modes

Sound

Longitudinal wave characteristics

shows

Propertieshas

include

Reflection

Refraction

Echo

Reverberation

FSTwarm to cool air

SFAcool to warm airStanding waves

a reflection phenomena

Pipes

Strings

inin

OpenAll harmonicspossible1,2,3….

ClosedAlternateharmonics only1,3,5….

1st harmonicfundamental 2nd harmonic

All possible

Disp antinode= Pressure node

can be

havevibrationmodes

Diffraction Wavelength opening

max

bending

can be

single

multi

Sound

Longitudinal wave char

shows

has

Standing a reflection

may produce

Natural fBeats Constructive - In phaseDestructive - Out of phaseSimilar f and amplitudeIf forcing vib = natural f

have loud softforced occurs

Natural vibrations

Resonance

Interfere

has

may produce

may

Sound

Longitudinal wave characte

shows

has

Standing a reflection

may produce

Interferemay

Constructive In phase

Destructive Out of phase

loud

softBeatsproduces

Similar fandamplitude

Resonance

Naturalvibrations

has

hasIf forcing vib= natural f

Natural fforced

occurs

have

S. Coghlan

Your own concept map

Single page concept map

Longitudinal wave characteristicsStanding waves - a reflection phenomena Interfere Properties Resonance Natural vibrations Phase, degrees or radians Amplitude Intensity Level, dB Inverse squareFrequency, 20-20000 HzDoppler effect WavelengthReflection EchoReverberation RefractionFST - warm to cool airSFA - cool to warm air Diffraction Pipes Wavelength openingDisp antinode = Pressure nodeClosed - Alternate harmonics only 1,3,5…. StringsOpen - All harmonics possible 1,2,3…. Natural f1st harmonic - fundamental2nd harmonic All possibleBeats Similar f and amplitudeConstructive - In phaseDestructive - Out of phaseIf forcing vib = natural f

shows may produce

may produces has

may produce include changes

hearing W m-2

single multi max

bending include in

have can be can be

in vibration modeshave loud softforced occurs

You can use these Main Concepts and Linking Words to complete your own concept map. You can print out the next page and use it as a framework.

Main Concepts

Linking Words

Printer friendly version available from my web site

Sound

Printer friendly version available from my web site

Sound

Longitudinal wave characteristics

shows

Propertieshas

Standing waves - a reflection phenomena

may produce

Interferemay

Resonancemay produce

Natural vibrations

produces

Intensity

Frequency20-20000 Hz

Wavelength

Level, dBInverse square

include

Doppler effect

AmplitudePhase, degrees or radians

changeshearing W m-2

include

Reflection

Refraction

echo

reverberation

FSTwarm to cool air

SFAcool to warm air

Diffraction

Wavelength opening

max

bending

singlemulti

Pipes

OpenAll harmonicspossible1,2,3….

ClosedAlternateharmonics only1,3,5….

Disp antinode= Pressure node

can be havecan be

in

Constructive In phase

Destructive Out of phase

loud

softBeatsproduces

Similar fandamplitude

have