PhysCasts are narrated screen video recordings explaining physics concepts and their application to problem-solving. They have been produced by Swinburne University of Technology's Faculty of Science, Engineering and Technology. The series is part of an ongoing collaborative research project to develop high quality resources and investigate the effectiveness of screencasts to support learning. PhysCasts are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License: http://creativecommons.org/licenses/by-nc-nd/3.0/.