Torque Physics Lab Report. The purpose of this experiment was to help understand torque by not only measuring it but also by manipulating and adjusting the weights experimentally.

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Objective

The purpose of this experiment was to help understand torque by not only measuring it but also by manipulating and adjusting the weights experimentally.

Procedure

In order to perform all the procedures a few instruments were required a meter stick, a triple beam balance, suspension clamps and their stirrups, a knife edge, as well as weights of 50 and 100 grams and a spring scale. The meter stick was weighed (without the clamp), and its center of gravity was found (it's not usually exactly at 50cm), the 6 clamps were weighed as well. For the first part the meter stick was put on 35cm and a 100g weight was adjusted until the center of balance was found, the position was recorded, this was than done with 150g and 50g. Once the values were recorded the weight of the bar was calculated and the average was found. For the next part of the experiment three weights were attached anywhere on the bar, the center one was adjusted till there was equilibrium and than the force was measured with a spring scale. The numbers were recorded and the weights of down and upward forces were measured as well as the clockwise and counter clockwise torques. For the last part of the experiment six clamps were arranged on the bar( with weights on them )  so that one was at 10cm and one at 90cm and the rest were spread in between , one end was supported by the knife edge and the other by the spring scale. The forced shown by the scale was recorded, the ends were than switched and the force was once again recorded. Calculations were than done to verify the sum of the torque was that of the reading on the spring scale as well as that the total sum of the weights was compared via calculation to the upward force shown.

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Data/Analysis

Part I: Prep

Part II:

Calculating the weight of the meter bar by balancing torque (mb):

(mc= mass of clamp, g = acceleration due to gravity)

Part III:

 

Part IV Observation and confirmation

Spring and rPoint switch

Questions:

        The motion of the rigid system will move up in the counter clockwise direction if ...

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