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Robots building cardboard cars

Finding Friction: Sleds on the Move

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Students pull wooden "sleds" with different masses on them over various types of surfaces with spring scales (force meters) to calculate the different coefficients of friction. Students graph the data and find the slope. The slopes are the coefficients (ratio of friction force to normal force.)

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Grades: 9th Grade, 10th Grade, 11th Grade, 12th Grade
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This lesson is a follow-up to the lesson titled "Creating Sustainable Solutions with Bioplastics Part 1". In this lesson, students evaluate different ingredients for bioplastics and create a minimum