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The Invisibility of Time Dilation

Authors :
Hughes, Theo
Kersting, Magdalena
Source :
Physics Education. Mar 2021 56(2).
Publication Year :
2021

Abstract

Recently, the physics education community has taken a keen interest in modernising physics education. However, while topics in modern physics have great potential to engage students, these topics are abstract and hard-to-visualise. Therefore, many students hold mistaken pictures and misconceptions, which can impede learning. In this article, we expose a pervasive misconception about relativistic time dilation by presenting a thought experiment illustrating the difference between visual observation and coordinate measurement. We also point out how existing language can mislead and confuse students. In response, we describe an instructional approach that introduces world-maps, world-pictures and event-diagrams to clarify the applicability of key equations in special relativity for improved understanding. By unpacking 'the invisibility of time dilation' from the perspectives of both physics and pedagogy, we aim to help teachers provide clearer instruction.

Details

Language :
English
ISSN :
0031-9120
Volume :
56
Issue :
2
Database :
ERIC
Journal :
Physics Education
Publication Type :
Academic Journal
Accession number :
EJ1287001
Document Type :
Journal Articles<br />Reports - Descriptive
Full Text :
https://doi.org/10.1088/1361-6552/abce02