Lab D - Physics 103A-003 Lab D Linear Expansion Coefficient Names Fatimah Akhtar Aisha Alam Megha Bansal Ali Chahine Rashmi Ketha Brijen Patel Expediter

Lab D - Physics 103A-003 Lab D Linear Expansion Coefficient...

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Physics 103A-003 Lab D Linear Expansion Coefficient Names: Fatimah Akhtar, Aisha Alam, Megha Bansal, Ali Chahine, Rashmi Ketha, Brijen Patel Expediter: Aisha Alam
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Objective : To measure the coefficient of linear expansion for different metal rods. Theory : Linear dimensions for most substances increase as the temperature increases in a range that does not produce a change of phase. The added heat increases the vibrational kinetic energy of the atoms in the material, which in turn increases the distance between the atoms. To a first approximation, the increase in a linear dimension ∆L is proportional to the increase in temperature and the initial linear dimension: (∆L / L O ) = α * ∆T Where the proportionality α is called the coefficient of linear expansion. This coefficient depends on many factors. Such as the composition and the purity of the material, temperature, etc. Data : Rod Material Initial Temperature T i (°C) Final Temperature T f (°C) Temperature Change ∆T = T f - T i (°C) Initial Reading X i (mm) Final
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