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UNIT: |
Dynamics in 1-dim; static friction |
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PURPOSE: |
Illustrate the variability of static friction, the concept
of maximum static friction |
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EQUIPMENT: |
| 1. |
Small inclined plane of adjustable angle |
| 2. |
Assorted blocks of different surfaces, shapes |
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SUGGESTIONS: |
For one block, demonstrate that static friction adjusts
to circumstances up to a fixed, maximum value (experimentally nearly fixed,
maximum angle). Use different blocks to show that the coefficient of static
friction is mass independent, but depends on the quality of touching surfaces. |
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DISCUSSION: |
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