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May 24 – 25, 2021
Faculty of Science, Prince of Songkla University
Asia/Bangkok timezone

Smartphones as detector the speed of sound: A classroom explanation and demonstration

Not scheduled
30m
Faculty of Science, Prince of Songkla University

Faculty of Science, Prince of Songkla University

Poster Physics Education

Speaker

Angkhan Intanin (Kalasin University)

Description

This paper presents how smartphones determine the speed of sound (a) with a classroom explanation and demonstration to design a variety of lab instruments. Smartphone sensors such as mics and speakers were used as experimental tools by students for calculating the value of speed of sound. Mathematics is used to describe physics principles using only the mean of repetitive experimental results. After conducting an experiment with 43 students, majoring in general science, faculty of education and educational innovation, Kalasin University, the students report the value of the speed of sound nearly to theoretical values (a = sqrt[gRT] at vary room temperature ; provide by NASA) with a percentage difference of less than 2%, equipment used in everyday life in the classroom, equipment that is cheap, along with a simple calculation of speed of sound, is an advantage of this experiment.

Primary authors

Angkhan Intanin (Kalasin University) Tawan Thongsuk (Kalasin University)

Presentation materials

There are no materials yet.

Peer reviewing

Paper