Torques and Rotational Equilibrium
PHY 200 & 230
Lab PDF 1Lab PDF 2
Based on Loyd #10. In this experiment, a meter stick pivoted on a support will be subjected to various forces via hanging weights on the meter stick. The students will measure the position and magnitude of each of these forces. From these measurements, the students will calculate the mass of the meter stick and an unknown mass using known torques applied to the meter stick.
Equipment
| Name | Location | Quantity |
| Torsion Balance Stands | JE-105A-S22 | 1 per table |
| Weight Hangers, 100g | JE-105A-D42, D43 | 4 per table |
| Lever Knives | JE-105A-D45 | 5 per table |
| Lab Jack | JE-105A-S38 | 1 per table |
| Meter Stick - 1.00m | JE-105A-(105 Door), D98 | 1 per table |
Notes
Ensure that one of the lever knives is a fulcrum. This is the lever knife with a plate over the screw so that the lever knife will not cut/dig into the meter stick. Place four regular knives out also.
Make sure that the room has plenty of paper.
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