ERIC Number: EJ892019
Record Type: Journal
Publication Date: 2007-Sep
Abstractor: As Provided
Reference Count: 2
Where Is the Center of Mass of Florida?
Greenslade, Thomas B., Jr.
Physics Teacher, v45 n6 p359-360 Sep 2007
An attention-grabbing center-of-mass demonstration uses the map of a state mounted on a sheet of heavy cardboard and cut out along the boundaries. The two-dimensional object is hung from a hole punched into a city near the edge, and a string with a pendulum bob attached to it passes through the center of mass. The process is repeated with a different city, and the center of mass is determined uniquely. I did this regularly with a map of the state of Ohio, and the geographic center of the state reliably came out to be the nearby village of Centerburg.
Descriptors: Demonstrations (Educational), Computation, Maps, Physics, Measurement Techniques, Problem Solving, Science Instruction, Scientific Principles
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: firstname.lastname@example.org; Web site: http://scitation.aip.org/tpt
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A
Identifiers - Location: Florida; Ohio