I need to find out the following questions relating to a Guitar and a open and closed Organ relating...

Question

I need to find out the following questions relating to a Guitar and a open and closed Organ relating to the physics:
How is sound produced? Key words: Transverse, Longtitudinal, particles
How are standing waves set up in the instruments? Key words: incident, reflected, interference, wavelength, string/pipe length
What factors determine the sound? Key words: frequency, string/pipe length, harmonics, timbre, tension of string, temperature of air
I then have to compare and contrast:
Do the instruments sound different when they play the same note? Needs to be fully explained and link to physics ideas
Do strings and pipes of the same length produce the same fundamental frequency? Again needs to be fully explained with linking to physics ideas.
:)

David · Accepted Answer

How is sound produced? Key words: Transverse, Longitudinal, particles 
Answer 
Sound is produced due to the vibrations in particles. When we blow air in to an organ pipe, it 
starts vibrating particles in longitudinal mode i.e. particles are starts vibrating parallel to the 
direction of propagation of the air introduced. Hence a longitudinal wave set up in the organ pipe 
and sound is produced. Sound is an example of material wave so requires medium for its 
propagation so if no material particle is present disturbance cannot be produced so no sound will 
be heard. 
How are standing waves set up in the instruments? Key words: incident, reflected, interference, 
wavelength, string/pipe length 
Answer 
When we blow air in to pipe,

I need to find out the following questions relating to a Guitar and a open and closed Organ relating to the physics: How is sound produced? Key words: Transverse, Longtitudinal, particles How are...

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