Studying the pressure in a rubber balloon in a vacuum bell jar using digital technologies

Abstract The nonlinear elastic properties of rubber cause a specific relationship between the pressure and volume in a rubber balloon. This is manifested by the fact that when the balloon is inflated, the pressure inside it increases sharply, and then gradually decreases as the volume increases. It is interesting to see what will happen to the pressure in a rubber balloon in a vacuum bell jar, when air is not pumped into the balloon, but is pumped out of the bell jar and the balloon expands. The study was conducted using an Arduino system for pressure measurement, the Tracker software for video analysis, and Google Sheets cloud service for mathematical calculations and plotting. This allows for the effective implementation of the STEM approach in education. This study is appropriate to use in the training of future masters-level physics teachers to form digital competence and competence in STEM education. In the future, they can use it as a learning project in the educational process during their professional activities.