Lab D_ Linear Expansion Coefficent.docx - Lab D Linear Expansion Coefficient Name Tomasz Dulian Experiment Date Submission Date PHYS 103A Professor

# Lab D_ Linear Expansion Coefficent.docx - Lab D Linear...

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Lab D: Linear Expansion Coefficient Name: Tomasz Dulian Experiment Date: 2/13/19 Submission Date: 2/20/19 PHYS 103A Professor Huang Group: Dipen, Hrushi, Leandro, Diego, Matthew 1) Introduction: 1.1) Objective: To measure the coefficient of linear expansion for different metal rods. 1.2) Theoretical Background: Linear dimensions for most substances increase as the temperature increases in a range that does not produce a change of phase. Added heat increases vibrational kinetic energy, which in turn increases the distance between the atoms Δ L / L = α ΔT ( L F L i )/ L 0 = α ( T F T i ) Δ L = C hange Lengt h α = co efficient of linear expansion 2) Experimental Procedure: 3) Results:
3.1) Experimental Data: Steel Rod L 0 = 604 mm Copper Rod → L 0 = 600 mm Rod Material Initial Temperature T i ( ) Final Temperature T f ( ) Temperature Change ΔT = T f T i ( ) Steel 23 98 75 Copper 28 98 70 Rod Material Initial Reading L i (mm) Final Reading L f (mm) Length Change L ( ¿¿ f L i ) ΔL = ¿ (mm) Steel 1.0 10 0 1.48 10 0 4.8 10 1 Copper 5.0 10 0 5.67 10 0 6.7 10 1 3.2) Calculations: Steel ( L f L i )/ L 0 = α Al ( T f

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• Spring '17
• HalinaOprychal
• Vector Space, Aluminium, Coefficient of thermal expansion, Rod Material, Huang Xianfan