The digital video analysis is a technique that allows you to connect the physical phenomena present in a video, to the study of the physical and mathematical concepts applied in the process. It is a low cost technique, since it requires no more than a computer and video recordings, so it is capable of being operated by the student himself. In the case will I work here I will try to illustrate the applicability of this method to the Physics / Astronomy. This technique can become even more powerful as a teaching tool, the processing of data independently do a worksheet and if you later associate mathematical modeling.