Teaching optical phenomena with Tracker

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Rodrigues, M (Author) Other; Simeao Carvalho, P (Author) FCUP

Journal

Title: Physics Education

Vol. 49

Pages: 671-677

ISSN: 0031-9120

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge

Scopus - 30 Citations

Other information

Authenticus ID: P-00F-ZMW

DOI: 10.1088/0031-9120/49/6/671

Abstract (EN): Since the invention and dissemination of domestic laser pointers, observing optical phenomena is a relatively easy task. Any student can buy a laser and experience at home, in a qualitative way, the reflection, refraction and even diffraction phenomena of light. However, quantitative experiments need instruments of high precision that have a relatively complex setup. Fortunately, nowadays it is possible to analyse optical phenomena in a simple and quantitative way using the freeware video analysis software 'Tracker'. In this paper, we show the advantages of video-based experimental activities for teaching concepts in optics. We intend to show: (a) how easy the study of such phenomena can be, even at home, because only simple materials are needed, and Tracker provides the necessary measuring instruments; and (b) how we can use Tracker to improve students' understanding of some optical concepts. We give examples using video modelling to study the laws of reflection, Snell's laws, focal distances in lenses and mirrors, and diffraction phenomena, which we hope will motivate teachers to implement it in their own classes and schools.

Language: English

Type (Professor's evaluation): Scientific