1-1热力系统 1、系统与边界 热力系统(热力系、系统):人为地 研究对象 外界:系统以外的所有物质 边界(界面):系统与外界的分界面 系统与外界的作用都通过边界

I. Choose the Correct Answer 1. Which of the following quantities are independent of the choice of inertial frame? (There may be more than one correct answer) (A)Velocity (B)Acceleration (C)Force (D)Work Solution: In all the inertial frame, the forces acted on a body are same,=ma=F'=ma', therefore the force and acceleration are independent of the choice of inertial frame

I. Choose the Correct Answer 1. A particle on a spring executes simple harmonic motion. If the mass of the particle and the amplitude are both doubled then the period of oscillation will change by a factor of

I. Choose the Correct Answer 1. The magnitude of the force of gravity between two identical objects is given by Fo. If the mass of each object is doubled but the distance between them is halved, then the new force of between the objects will be

3.2动量算符和角动量算符 一、动量算符 1、动量算符的本征值方程

《量子力学》第三章 量子力学中的力学量（3.1）表示力学量的算符

3.8力学量平均值随时间的变化,守恒定律 一、在波函数(xt)所描写的态中,力学量F的平均值为F=(x(x求丙与t的关系

两力学量同时有确定值的条件测不准关系 一、算符的对易关系 1.对于任一波函数,有

根据数学物理方法中的证明,如果有一族函数 构成正交归一完全系,则任意函数都可以用{}来展 开为级数(广义傅里叶级数)。如果函数系{}不 构成分立的集合,则可以展开为傅里叶积分

3.5厄密算符本征函数的正交性 一、属于动量算符不同本征值得两个本征函数和互相正交: