2009/08/11 by Carlos Eduardo Aguiar, Marta Maximo Pereira · 1 citation
Physics and Astronomy · #physics.class-ph #physics.ed-ph #physics.pop-ph
paper · pdf · doi:10.1119/1.3527753
published as The Physics Teacher 49, 33-35 (2011) · 3 pages, 4 figures, Latex
arxiv created 2009/08/11 · arxiv updated 2013/06/18
Experiments in mechanics can often be timed by the sounds they produce. In such cases, digital audio recordings provide a simple way of measuring time intervals with an accuracy comparable to that of photogate timers. We illustrate this with an experiment in the physics of sports: to measure the speed of a hard-kicked soccer ball.