"Charged Balloon Expands When Blown Up

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SUMMARY

The discussion centers on the physics of a charged balloon expanding when inflated. As the balloon is blown up, its surface area increases, leading to a decrease in density. The participants confirm that while the density decreases, the surface area continues to grow, validating the answer provided in the linked resource. This highlights the relationship between surface area and density in the context of an expanding balloon.

PREREQUISITES
  • Understanding of basic physics concepts, specifically gas laws.
  • Familiarity with the relationship between surface area and volume.
  • Knowledge of density calculations.
  • Basic comprehension of electrostatics related to charged objects.
NEXT STEPS
  • Research the Ideal Gas Law and its implications on balloon inflation.
  • Explore the mathematical relationship between surface area and volume in three-dimensional objects.
  • Study the principles of density and how it changes with volume alterations.
  • Investigate electrostatic principles affecting charged objects, particularly in relation to gas behavior.
USEFUL FOR

Students studying physics, educators teaching gas laws and density, and anyone interested in the principles of electrostatics and their practical applications.

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Homework Statement



The charged balloon expands as it is blown up, increasing in size.

Here is a link. It is question 15.

http://cf.linnbenton.edu/mathsci/physci/rajabza/upload/wkbk_solutions_27.pdf

Homework Equations





The Attempt at a Solution



Is that answer correct? Because what I was thinking was since the balloon surface area was increasing then the density decreases hence all the points are decreasing? Am I wrong and the answer provided in the link correct?
 
Physics news on Phys.org
The answer there is correct.
The density is decreasing, but the surface area is increasing.
 
Thank you!
 

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