A wavy problem what will happen?

  • Thread starter Thread starter mooncrater
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on the behavior of strings in wave motion, specifically addressing whether a string will stretch or if the source of the wave will advance when a wave travels through it. Participants agree that when a string is fixed at both ends, it will stretch slightly due to tension created by wave motion, as exemplified by a plucked guitar string. However, when one end of the string is free, the dynamics change, leading to questions about whether the string elongates or if the wave source must exert continuous force to maintain motion.

PREREQUISITES
  • Understanding of wave mechanics, specifically transverse waves
  • Knowledge of tension in strings and its effects on wave propagation
  • Familiarity with the concept of fixed and free boundaries in wave systems
  • Basic principles of string instruments and their physical behavior
NEXT STEPS
  • Research the physics of transverse waves in fixed and free boundary conditions
  • Study the elasticity of materials and how it affects wave motion
  • Examine the role of tension in string instruments, particularly in guitar strings
  • Explore the mathematical modeling of wave propagation in strings using differential equations
USEFUL FOR

Students of physics, particularly those studying wave mechanics, as well as musicians and string instrument makers interested in the physical properties of strings and wave behavior.

mooncrater
Messages
215
Reaction score
18

Homework Statement


When I was reading waves from my book I noticed that the part of string in wave motion should be longer than the part of string not in wave motion . But throughout we have the same string, so to consider this change either the source will come ahead or the string will expand(increase its length) a little bit. So which of the two will happen?

Homework Equations


none

The Attempt at a Solution


-
 
Physics news on Phys.org
Hmmm. I never really thought about that.
I think that most real strings would stretch if they were fixed at both ends. For example, if you pluck a guitar string, the string will pull on the guitar at each end where it is attached to the guitar. The string stretches a little, and the guitar bends a little.
If the string was fixed at one end and not at the other, and you send a pulse from the fixed end towards the loose end, then I think that the loose end would be pulled towards you a little bit.

This is under the assumption that you are talking about transverse waves.
 
So what I made out of your reply is that the answer to my question is conditional . When both ends are bound then the only option remains for the string is that it will stretch. But for the case when one end is free , I have a problem . We know that the person has to pull the string for continuous wave motion. So shouldn't here too the string elongate?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 12 ·
Replies
12
Views
3K
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
5K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 6 ·
Replies
6
Views
6K