PHYSICS LECTURE DEMONSTRATIONS
M-D5 : Torque Balance
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UNIT: |
Introduction to rotational dynamics |
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PURPOSE: |
Develop understanding of the torque as the rotating
effect of a force |
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EQUIPMENT: |
| 1. |
Meter stick with pivot and hooks |
| 2. |
A stand |
| 3. |
Assorted weights |
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SUGGESTIONS: |
| 1. |
Single mass, vary the lever arm |
| 2. |
Two unequal masses, same lever arms |
| 3. |
Two equal masses, different lever arms |
| 4. |
Different masses, different lever arms (when in equilibrium?) |
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DISCUSSION: |
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1. Set-up (hangers with no additional masses)
2. Equilibrium, with two 200g masses
3. Same as above with masses further apart
4. Equilibrium, 100g on left and 200g on right
5. Equilibrium, 100g on left and two masses, 100g and 50g, on
the right
