*Conducted in terms:*2020Z, 2021Z

*Erasmus code:*13.2

*ISCED code:*0533

*ECTS credits:*7

*Language:*Polish

*Organized by:*Faculty of Physics

*Related to study programmes:*

# Classical Mechanics E 1100-2Ind02

The classical mechanics, besides solving its characteristic physical problems, is the place, where there appear the basic physical notions, entering into other branches of physics. In the first scope, the lecture is the continuation and development of the former "Basic Physics I (Mechanics)", the large part of it is however conceived to serve as brief introduction to Quantum Mechanics, Electrodynamics and Relativistic Gravitation.

**Program:**

1. Brief introduction to variational calculus. Newton equations with potential forces as equations of a variational principle. Extension to arbitrary coordinates and to systems with holonomic constraints. Examples.

2. Small oscillations of mechanical systems. Normal coordinates. Transition to the limit of infinite number of degrees of freedom.

3. Descriptions of a rigid body configurations. Euler equations. The lagrangian of a symmetrical top. Gyroscope on the rotating Earth. Action in a magnetic field. The vector potential. Charged symmetrical top in the homogenous magnetic field.

4. Symmetry and the conservation laws. Noether theorem. The group of Galileo and Lorentz. Relation among them. Relativistic action.

5. The variational Principle in the phase space. Hamilton equations. Liouville's theorem.

6. The Jacoby variational principle in classical and relativistic mechanics, including relativistic gravity of Einstein.

7. The canonical transformations. The Hamilton - Jacoby equation. Separation of variables in the H-J equation. Action integral along the physical trajectory as the solution of H-J eq. Action as the phase of a "wave". Motion of wave packets. Quantisation conditions. Equation for Exp[iS/h]. The Schroedinger equation.

8. Basic equations of hydrodynamics.

Description by Andrzej Szymacha, February 2009,

modified by Janusz Rosiek, August 2013.

## Prerequisites (description)

## Course coordinators

## Learning outcomes

Knowlegde of methods of classical mechanics, and ability

to solve problems on its own.

## Assessment criteria

Three written tests, the first two in the mid of semester,

and the last one after the end of semester (examination),

Minimum 50 % points to complete the course

## Bibliography

1. L.D. Landau, and E.M. Lifshitz: Course of Theoretical Physics: "Mechanics".

2. John R. Taylor - Classical Mechanics.

3. G. Białkowski, Mechanika Klasyczna

## Additional information

Information on *level* of this course, *year of study* and semester when the course
unit is delivered, types and amount of *class hours* - can be found in course structure
diagrams of apropriate study programmes. This course is related to
the following study programmes:

Additional information (*registration* calendar, class conductors,
*localization and schedules* of classes), might be available in the USOSweb system: