L43 - RememberThisWeek Short CAPA this week....

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Remember This Week Short CAPA this week. Laboratory/Recitation: Reviews. Thirty minute FCI test. Also, a 30 question review of material constructed by Prof. Zimmerman. Print review problems and bring to recitation section. Those needing to make-up Labs 4-6: contact your TA immediately. Done during this week’s Lab/Recitation period. Lecture on Friday: overview of material for the Final Exam. To study for the Final Exam (WED MAY 5, 4:30-7:00): (1) Clicker questions on-line, (2) CAPA questions, (3) Extra problems from Giancoli, (4) Our three mid-terms, (5) Three mid-terms & ±nal from previous semester, (6) Prof. Zimmerman’s review. (7) Re-read Giancoli: our web-site lays out coverage. L43 W 4/28/10 1 Physics 2010
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Extra Giancoli Problems L43 W 4/28/10 2 Physics 2010 Ch. 13: 4, 8, 9, 11 Ch. 14: 5, 9, 13, 21, 23, 25
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L43 W 4/28/10 Physics 2010 3 Temperature and Heat 1. Temperature scales: Ch. 13-2 2. Thermal expansion: Ch. 13-4
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L43 W 4/28/10 Physics 2010 4 Temperature and Heat 1. Temperature scales: Ch. 13-2 2. Thermal expansion: Ch. 13-4 Last time: [°F] = [°C] × 9/5 + 32 [°C] = ([°F] 32) × 5/9 [K] = [°C] + 273.15 [°C] = [K] 273.15 Δ L = α L o Δ T L = L o 1 + Δ T ( ) Δ V = β V o Δ T V = V o 1 + Δ T ( ) α , β – coeffs of linear & volumetric expansion, characteristic of a material.
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L43 W 4/28/10 Physics 2010 5 Temperature and Heat 3. Heat as energy transfer: Ch. 14-1 4. SpeciFc heat, latent heat and calorimetry: Ch. 14-2 to 14-5
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L43 W 4/28/10 Physics 2010 6 3. Heat as Energy Transfer Heat is energy transferred from one object to another because of a difference in temperature. James Prescott Joule 1818 –1889 English physicist and brewer Basic units: 1 calorie (cal) = amt of heat needed to raise T of 1 g of H 2 O by 1 °C 1 kilocalorie (kcal) = 1000 cal = 1 Calorie (Cal) 1 British thermal unit (Btu) = amt of heat need to raise 1 lb of H 2 O by 1 °F. -- food Calorie
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L43 W 4/28/10 Physics 2010 7 3. Heat as Energy Transfer Joule established: Mechanical Equivalent of Heat Work done on the paddle wheel raises the temperature of water due to friction. A given amount of mechanical work done is equivalent to a particular amount of heat input: 4.186 J = 1 cal 4186 J = 1 kcal = 1 Cal
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L43 - RememberThisWeek Short CAPA this week....

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