Electrical conductance lab: a low-cost, simple and useful project with Arduino

Abstract

This paper introduces a project carried out with an advanced physics class in a secondary school, where Arduino-based classroom measurements were used to strengthen the students’ knowledge in the topic of direct current. The aim of the project was to engage students in the classroom work and provide them with modern and applicable knowledge. The project involved students working in small groups, where they used Arduino to measure the conductance of various fluids, including tap water, and saltwater. Students relied on digital technology for data acquisition and data processing and they evaluated the measurement data digitally, too. Graphical representation and function plotting—qualitative and quantitative explanation of the measurements support students to deepen their knowledge. The project demonstrated the potential of applying Arduino-based classroom measurements to engage students in learning physics and provide them with hands-on experience with modern technology. In this paper, we introduce a method we designed for conducting Arduino-supported classroom measurements effectively, while developing competences that are essential for getting by in the 21st century.