Grade 12 Students' Misconception about Electric Induction

Journal article

Authors/Editors

Strategic Research Themes

Publication Details

Author list: Chakrapong Kittipongthanakit;Nakarin Pattanaboonmee;Saengkrit Klunboot;Narumon Emarat

Publisher: Faculty of Education, Chiang Mai University

Publication year: 2021

Volume number: 5

Issue number: 3

Start page: 125

End page: 137

Number of pages: 13

ISSN: 2586-9043

URL: https://so01.tci-thaijo.org/index.php/cmujedu/article/view/244921

Abstract

The knowledge of electric induction was to apply in daily life. It is basic knowledge that is used   to describe electricity generation and grounding. However, these contents are difficult to understand due to the complication of the main point which leads to misconceptions. Therefore, the researcher   then created a conceptual test to survey the understanding of 44 grade 12 students about electric induction. It contains three questions, which cover 4 topics: 1) the motion of the electric charge when induced 2) the motion of the electric charge when induction occurs in the electroscope 3) the effect of earthing in an induced electroscope and 4) the effect of removing the ground wire and the induced object from the induced electroscope. The results were analyzed by group student responses according to the level of scientific understanding applied by Haidar. The results of the survey, there was an average number of students with a sound understanding of 24.3 % and found a large number of students with a misunderstanding of 49.2 %. Most of the students have mistaken ideas in 2 issues. First, the electric charges for 86.4%. Second, after grounding, the electroscope is neutral for 84.1%. This study can develop learning management to scientific concepts and well attitude in studying physics in the future.

Keywords

การเหนี่ยวนำไฟฟ้า, ประจุไฟฟ้า, มโนมติที่คลาดเคลื่อน, อิเล็กโทรสโคป