In recent years several approaches have been published using video analysis in physics education in an innovative way.1–4 The common idea is that students record the motion, transfer the video on a computer, and analyze it with suitable software. In this paper we demonstrate how students can perform video analysis on mobile devices such as smartphones and tablet computers by using special applications. By doing so, students can record and analyze the motion during the experimental process and combine the advantages of mobile devices with the possibilities of video motion analysis.5,6 Moreover the possibility of recording slow motion videos allows the analysis of even fast-moving objects. In our presented approach we utilize video analysis on tablet computers in an attractive experimental setup for students to investigate the effects of air resistance on falling objects with low-cost material by themselves.
For typical classroom experiments with falling objects in air,...