PH301 : Mechanics III

Department

Department of

Academic Program

Bachelor in Physics

Type

Compulsory

Credits

03

Prerequisite

Overview

Introduce the student to the basic concepts of analytical mechanics such as generalized coordinates and laws of motion in the case of moving coordinate systems, and introduce him to the mechanics of Lagrange and Hamilton. Explain the gravitational field which helps the student understand the way the universe works. Find a linear approximation of any dynamics system near equilibrium as well as identify and solve the equation of a wave in the case of small oscillations.

Intended learning outcomes

At the end of the course the student should be able to:

1. Get acquainted with the laws that explain some natural phenomena.

2. Explain the classical mechanics theories and their development over the years.

3. Understand the impact of the rotating earth on the objects moving on or near its surface.

4. Formulate and solve classical mechanics problems using Lagrangian and Hamiltonian methods.

5. Compare Newton’s method whit Lagrange’s and Hamilton’s methods in solving mechanics problems.

6. Distinguish between conservative and non-conservative forces.

7. Use the concepts of theory of small vibrations on simple problems with different degrees of freedom.

8. Merge with others to work in a team.

9. Development of written and oral communication capabilities.

Teaching and learning methods

· Lectures.

· Discussion and dialogue.

· Tutorials and exercises.

Methods of assessments

The methods of evaluating students in this course are distributed as follows:

o Semester work (40 marks) is divided as follows:

· First written exam (objective questions and problem) (15 marks).

· Second written exam (objective questions and problem) (15 marks).

· Scientific activities (e.g. weekly tests, reports discussion) (10 marks).

o Final: written exam (60 marks).

Course contents

Week

Scientific topic

1-2

Gravitation: gravitational potential; Lines of force of a gravitational field; Relation between the gravitational field and gravitational potential, gravitational field and gravitational potential due to mass distribution; Equipotential surfaces and lines of force due to gravitational field; calculating the gravitational force.

3-5

Motion under a central force : reduced mass, kinetic energy in Cartesian, Spherical, and Cylindrical coordinates, conservative and non-conservative forces, potential energy of conservative force, Equation of motion of a particle moving under a central force inversely proportional to the square of the distance, Effective potential energy, planetary motion and Kepler's equation.

5

First exam

6-8

Moving coordinate system: rotating coordinate; displacement, velocity and acceleration in rotating coordinate system; Centrifugal force; Coriolis’ force; Laws of motion on the rotating earth; Focault’s pendulum.

9-10

Hamilton’s and Lagrange’s Equation: Hammilton’s principle, generalized coordinates, Lagrange’s equation in generalized coordinates, Equivalence of Lagrange’s and Newton’s equations, Hammilton’s equations of motion, Motions operators and Poisson brackets.

Second exam

11-14

Theory of small vibrations: Expansion of the potential-energy function in a power series; Two coupled harmonic oscillators; General theory of vibrating systems; Forced vibrations “damping”; Vibration of a loaded string; vibration of a continuous system “ The wave equation”.

15

Final Exam

References

Place

Publisher

Version

Author

Title

lecturer

lecturer

Rapporteur notes

University library

Addison-Wesley publishing company

3rd Edition

Symon

Classical mechanics

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