课程名称:普通物理学 课程性质:大一 课程教师:伊林 开课系所:物理系 考试时间:2006 1/9 1)Please construct the framework of the physics which you have learned in the past half semester(starting from the simple harmonic oscillator). (30%) 2)What is the eigen mode? Use two coupled oscillators as an example. How do you extend this concept to explain the elastic wave on a string? (10%) 3) (15%) a)Interpret the physical signficiance of the following terms: i)charge, ii)electric field, iii)divergence b)What is Gauss law, in the integration and the differential forms? What is the relation with Coulomb's law? c)What is the significance of ε_0 (epsilon zero)? 4)An infinite cylinder at diameter d is uniformly charged with charge density ρ. Determine the electric field as a function of radius r. (10%) 5)What are the conditions for a system under which the system can be treated as a thermodynamics system? What are the spatial and temporal scales? (10%) 6) (15%) a)What is the "micro-state" for a thermal system? What is the "macro-state"? Please give a few examples. What is entropy? b)What is the postulate of equal apriori? What is the second law of thermal dynamics? What is the relation between the postulate of equal apriori and the second law of thermal dynamics? 7) (10%) a)What is the zero-th law of thermal dynamics. Please explain it from the statistical point of view. b)What is the physical significance of temperature? 8)An idea gas at temperature T expands isothermally from the initial volume Vi and pressure Pi to the final volume Vf, please calculate the total work done and the heat transfer in the whole process. (10%) 9)Describe and explain the motion of a rolling coin on a flat horizontal surface from beginning till it falls. (原PO注:此题是期中考题) --

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