Teaching uniform linear motion using an Arduino sensor and a smartphone device

Abstract

In this work, we designed and implemented an Arduino-based experiment to study one-dimensional uniform linear motion. The position of a small vehicle running at a constant velocity in one dimension, is measured using an ultrasonic sensor. A Bluetooth module connected to an Arduino board is paired with a smartphone, where data are acquired and position vs time curves of the vehicle are plotted on the smartphone’s screen. Students can share the experimental data via their smartphones and study uniform linear motion through guided experiments. The educational experience of the classroom implementation of the project is also presented. The results show that pairing an Arduino-based sensor with an android device, improves students’ comprehension of motion, enhances their motivation and cultivates positive attitude and anticipation for the forthcoming science lessons.