When dealing with the apparatus given to us the human eye cannot correctly

When dealing with the apparatus given to us the human

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plots can be off due to human error. When dealing with the apparatus given to us, the human eye cannot correctly detect the perfect leveling of the apparatus. Also there could be errors present in the measuring of the diameter and lengths. 3. If the wire in the apparatus were replaced with one that was twice as thick, when adding the first kilogram, the amount of stress would be decreased. The other values may not change since they are not really affect by the thickness of the wire or the area. 4. Measuring the diameter and length of the wire at the beginning with only 1 kg, or when there are 7kg total loaded on the hook does make a significant difference. The as you add or decrease weight, the length of the wire changes. Add you add weight onto the wire it stretches out. As you take weight off the wire it compresses. Conclusion
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Amparo 4 This laboratory experiment allowed us to better understand the Young’s Modulus of elasticity. By stretching the wire with the weights, we were able to observe how area affects stress and how we can use stress and strain to calculate Young’s Modulus. Data Tables
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Amparo 5 Table I Weight m (kg) Applied Force, F=mg (N) Reading of the micrometer screw L 1 (mm) Δ L= L 1 - L 0 (mm) Strain Δ L/L Stress F/A (N/m 2 ) 1 9.8 15.44 0.12 0.00018 31410256.4 2 19.6 15.55 0.23 0.0034 62820512.8 3 29.4 16.17 0.85 0.0013 94230769.2 4 39.2 16.27 0.95 0.0014 125641025.6 5 49 16.89 1.57 0.0023 157692307.7 6 58.8 17.00 1.68 0.0025 188461538.5 7 68.6 17.11 1.79 0.0026 219871794.9 Table II Weight m (kg) Applied Force, F=mg (N) Reading of the micrometer screw L 1 (mm) Δ L= L 1 - L 0 (mm) Strain Δ L/L Stress F/A (N/m 2 ) 7 68.6 17.11 1.79 0.0026 219871794.9 6 58.8 16.98 1.66 0.0024 188461538.5 5 49 16.89 1.57 0.0023 157692307.7 4 39.2 16.80 1.48 0.0022 125641025.6 3 29.4 16.49 1.17 0.0017 94230769.2 2 19.6 16.03 0.71 0.001 62820512.8 1 9.8 15.99 0.67 0.00099 31410256.4
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  • Spring '17
  • HalinaOprychal
  • Physics, Force, Kilogram, elastic modulus

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