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ERIC Number: EJ931198
Record Type: Journal
Publication Date: 2010-Nov
Pages: 9
Abstractor: As Provided
ISSN: ISSN-0031-9120
Studying the Frictional Force Directions via Bristles
Prasitpong, S.; Chitaree, R.; Rakkapao, S.
Physics Education, v45 n6 p602-610 Nov 2010
We present simple apparatus designed to help Thai high school students visualize the directions of frictional forces. Bristles of toothbrushes, paintbrushes and scrubbing brushes are used to demonstrate the frictional forces acting in a variety of situations. These demonstrations, when followed by discussion of free-body diagrams, were found to be effective in teaching frictional force directions. (Contains 10 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
Identifiers - Location: Thailand