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An energy process can be represented by verbal, pictorial, bar chart, and mathematical representations. This multiple-representation method for work-energy processes has been introduced and used in the work-energy part of introductory college physics courses. Assessment indicates that the method, especially the qualitative work-energy bar charts, serves as a useful visual tool to help students understand work-energy concepts and to solve related problems. This paper reports how the method has been used to teach work-energy concepts, student attitudes toward this approach, and their performance on work-energy problems.
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