1K20.20 Friction: Area Dependence of Friction

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Photos show the demonstration used at the University of Texas at Austin.

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Instructions / Notes:

• The demo is supplied with an inclined plane, a spring scale along with either an aluminum or wooden block and a string .

• Start the demonstration with the inclined plane set in the level position.

• Slide the block by pulling on the spring scale with a smooth steady motion.

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Demo Staff:

• Include a spring scale that is appropriate for the wooden block or the aluminum block.

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Last Updated 7/24 - University of Texas at Austin Physics Dept. - All Rights Reserved.