Physics Lab Conclusion

Worksheet

Physics I: Thermal Expansion Worksheet
Class: UP1 Lab Names: Zachary Mann
Section: Section 1 Ashlynn Holt
Lab Group: Lab Group 15 Alwleed Almutairi
Assignment Date: Tuesday, Nov 13
answer key: numbers data
Table 1: Data and Calculations
Length (mm) ΔL (mm) Resistance at Room Temp. Rrm (Ω) Resistance when Heated Rhot (Ω) Room Temperature Trm ( C˚ ) Heated Temperature Thot ( C˚ ) Change in Temperature ΔT ( C˚ )
Copper 704.85 0.14 111.00 6.56 23 95 72 m
Steel 704.85 0.66 105.40 6.74 24 94 70
Aluminum 704.85 1.25 100.02 6.76 25 94 69
Table 2: Results
Experimental Thermal Coefficient α (1/C˚) Accepted Thermal Coefficient α (1/C˚) % Error (%)
Copper 2.7 17.6 84.66
Steel 13.3 13.5 1.48
Aluminum 25.7 23.4 9.83

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