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ERIC Number: EJ941353
Record Type: Journal
Publication Date: 2011-May
Pages: 6
Abstractor: As Provided
Reference Count: 2
ISSN: ISSN-0031-9120
More Fun and Curiosity with Magnetic Guns in the Classroom
Chittasirinuwat, O.; Kruatong, T.; Paosawatyanyong, B.
Physics Education, v46 n3 p318-322 May 2011
The magnetic gun was chosen as a hands-on activity for our high school students. When conducting this activity in the classroom, we found some interesting points were raised following difficulties encountered by the students. Some students proposed that during the collision, the magnet changed its pole then it pushed the last ball out of the apparatus, but some suggested that all the balls were attracted by magnetic forces, therefore the last ball could not shoot out. With a question to raise their curiosity, "How do magnetic guns work?", our students explored notions of magnetic force, work, and conservation of energy and momentum through their own design of magnetic guns. This article describes a method for measuring the changes of kinetic energy and describes factors that students should consider for making magnetic guns more powerful and for having fun with the activity of building them. (Contains 1 table and 8 figures.)
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A