Danielle,+Tucker,+Nikki

Lab: Levers - Static Equilibrium
Period 4 4/15/11 Due: 4/18/11

What is the relationship between the torques acting on an object at equilibrium?
 * Objective**

Because the meter stick is at equilibrium, the torques should be equal.
 * Hypothesis**

Meter stick Pivot Lever clamps 3 mass hangers 3 different masses 1 unknown mass Balance
 * Materials**

1. Find the center of mass of the meterstick. 2. For trial 1, take a .020 kg mass and a .1 kg mass and place one on each side of the meter stick. The heavier mass should be closer to the fulcrum than the other mass is. Balace the meter stick. 3. For trial 2, place a new heavier mass, .2 kg, on one side of the meter stick alone. Place the other two masses on the other side of the meter stick. The heaviest mass should be closer to the fulcrum than the other two masses are. 4. For trial 3, set the fulcrum off at least 20 cm from the center of mass. Use the heavier mass on the shorter side of the meter stick and the lighter mass on the long side to balance it. 5. For trial 4, keep the fulcrum offset. Use two masses. Use the heavier mass on the shorter side of the meter stick to balance it. 6. For trial 5, we must solve for the unknown mass. Set the fulcrum back to the center of mass. Use the unknown mass and one other mass on the other side of the meter stick to balance it out. Calculate for unknown mass using knowledge that the torque equations. 7. For trial 6, measure the mass of the meter stick. Measure the angle that the cable is at. Measure the distance away from the fulcrum (the hinge) that the cable is at. Using all of this experimental data, solve for the tension in the cable.
 * Procedure**


 * Data**


 * Analysis Questions**