Geo Kalfov
First Private Mathematical High School – Sofia (Bulgaria)
https://doi.org/10.53656/nat2022-2.02
Abstract. Standing waves are a naturally arising phenomenon in many situations where sound waves propagate in an enclosed medium. Inspired by problem 17 from the International Young Naturalists Tournament (2021), this investigation aims to establish a relationship between the speed of sound in air as a function of air temperature at constant pressure and humidity. This goal is achieved by exploiting certain properties of standing sound waves in a tube, sealed off at one end. By varying the length of the tube and the temperature of the air inside, properties of the air, such as its molar mass, can also be determined.
Keywords: standing waves; speed of sound; temperature; molar mass; experimental investigation; IYNT
Related articles:
Management Approaches in the Field of Culture
The Famous Rakovski: The Revivаl Figure in the Light of Newly Discovered Ottoman Archive Sources
On the Dynamics of a Class of Third-Order Polynomial Difference Equations with Infinite Number of Period-Three Solutions
Reading Attitudes and Practices: the Italian Experience (Overview of Statistical Data)
