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The equivalence principle comes to school: falling objects and other middle school investigations
Lund University.
Lund University.
Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Learning in Science and Mathematics (LISMA). (LISMA)ORCID iD: 0000-0003-3175-5185
Byskolan, Södra Sandby.
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2014 (English)In: Physics Education, ISSN 0031-9120, E-ISSN 1361-6552, Vol. 49, no 4, 425-430 p.Article in journal (Refereed) Published
Abstract [en]

Comparing two objects falling together is a small-scale version of Galileo's classical experiment, demonstrating the equivalence between gravitational and inertial mass. We present here investigations by a group of ten-year-olds, who used iPads to record the drops. The movie recordings were essential in the follow-up discussions, enabling the students to compare the different situations and to discern situations where air resistance was essential and where it could be neglected. By considering a number of familiar situations and simple investigations that can be performed, e.g., on a playground, students may come closer to an appreciation of the deep significance of the non-influence of mass on motion under gravity.

Place, publisher, year, edition, pages
2014. Vol. 49, no 4, 425-430 p.
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Didactics
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URN: urn:nbn:se:hkr:diva-12925DOI: 10.1088/0031-9120/49/4/425OAI: oai:DiVA.org:hkr-12925DiVA: diva2:748140
Available from: 2014-09-18 Created: 2014-09-18 Last updated: 2017-12-05Bibliographically approved

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Hansson, Lena
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CiteExportLink to record
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Citation style
  • apa
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