The purpose of this lab is for students to experience with tension and figure out the mass of an object with the tensions.
Apparatus
With a object with an unknown mass held up by spring scales that are tied to long rods each. The spring scales should be suspend at an angle. Measure the angle and record the scale readings. Estimate the uncertainty in the angle readings and scale readings. Use the measured values to determine the mass of the unknown mass. Propagate uncertainty in the calculated values of your mass.
Explanation
With the spring scales reading 4N at an angle of 48 degree above the horizontal and 3.2N at an angle of 42 degree above the horizontal. The uncertainty of the objects are listed: spring scales are 0.025N and the angles are π/180. After calculating the mass of the unknown mass, we came up with a mass of .522kg and an uncertainty of 0.03858kg.
Conclusion
The spring scales were placed at an angle above the horizontal, which were enough for students to find the mass of the unknown object. After measuring all the spring scales and angles we came up with a mass and uncertainty, which gave us a 7.4% leeway of what the exact mass is.
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