METHODOLOGICAL FEATURES OF SMARTPHONE SENSORS USING IN PHYSICS SCHOOL LABORATORY WORKSHOP (ON THE EXAMPLE OF THE PHYPHOX MOBILE APPLICATION)

Abstract

The article focuses on the use of smartphone sensors – accelerometer, gyroscope, magnetometer, light sensor, microphone, barometer, and others in students’ STEM projects. A partial solution to the problem of the outdated material and technical base of school physics classrooms is proposed by conducting laboratory work in the Phyphox application and 3D printing of auxiliary elements previously developed in the Tinkercad modeling environment. Phyphox is an application developed at the RWTH Aachen University. The application allows, based on data received from smartphone sensors, to create a full-fledged laboratory complex and conduct non-trivial experiments, as well as to save data arrays for further interpretation. The following features of the Phyphox application were revealed: the presence of ready-made physical experiments, the ability to create your own experiments, processing and displaying data from smartphone sensors in real-time, support for exporting experiment results to files of various formats (csv, xls). Phyphox can be controlled remotely from any device that is on the same network as the smartphone and has a web browser. As an example, typical physical experiments proposed in Phyphox and the author’s initiatives are considered, such as: determining the relationship between illumination and an increase in the distance to the light source, establishing the motion law of a suspended swing based on accelerometer data, determining the weight of a passenger in a mobile elevator car, establishing a function, according to which the sound level changes with increasing distance from the sound source, studies of resonance phenomena in the air depending on the volume of the cavity, determination of the speed of movement of a radio-controlled car (using the example of the Doppler effect studying). A promising direction is laboratory work using external sensors connected to Arduino platforms with synchronization with a smartphone via Bluetooth. It requires further educational and methodological developments.