This course has grown out of the first course in Physics taught to engineering students at IIT-Madras. However, the contents are expanded to include the interests of students of basic sciences and a strong emphasis on the foundations of classical mechanics is aimed at.

Essentially, foundations of ‘classical mechanics’ would include a comprehensive introduction to Newtonian, Lagrangian and Hamiltonian Mechaincs, and include an introduction to mechanics of a system of particles, fluid mechanics, introduction to ‘chaos’, to the special theory of relativity and also to electrodynamics.

The course is designed as the first course students would take after high school, and the scope of some of the advanced topics that are introduced is therefore restricted. A comfortable introduction, adequately rigorous but not overly involved, to advanced applications is attempted. In this course, we emphasize that ‘observation’ and ‘measurements’ play a fundamental role in Physics.

We introduce mathematical methods as and where needed, but keep the focus on physical principles. The course aims, even as it will provide a rigorous introduction to the foundations of classical mechanics, at discovering the romance in physics, beauty in its simplicity, and rigor in its formulation.

The curriculum will be covered in Eleven Units spread over about 40 lecture hours.

Unit No.

Topic/s

Lectures

Unit 1

Equations of Motion. Principle of Causality and Newton’s I & II Laws. Interpretation of Newton’s 3rd Law as ‘conservation of momentum’ and its determination from translational symmetry. Alternative formulation of Mechanics via ‘Principle of Variation’. Determination of Physical Laws from Symmetry Principles, Symmetry and Conservation Laws. Lagrangian/Hamiltonain formulation. Application to SHO.

Unit 1: 1(Course Overview)+5 Lectures: L1 to L6

Unit 2

Oscillations. Small oscillations. SHM. Electromechanical analogues exhibiting SHM. Damped harmonic oscillator, types of damping. Driven and damped & driven harmonic oscillator. Resonance, Quality Factor. Waves.

Unit 2: 4 Lectures: L7 to L10

Unit 3

Polar coordinate systems.

Unit 3: 2 Lectures: L11,L12

Unit 4

Kepler Problem. Laplace-Runge-Lenz vector, ‘Dynamical’ symmetry. Relationship between ‘Conservation principle’ and ‘Symmetry’.

Unit 4: 2 Lectures: L13,L14

Unit 5

Inertial and non-inertial reference frames. Pseudo forces.

Unit 5: 4 Lectures: L15 to L18

Unit 6

Galilean & Lorentz transformations. Special Theory of Relativity.

Unit 6: 4 Lectures: L19 to L22

Unit 7

Physical examples of fields. Potential energy function. Gradient, Directional Derivative, Divergence of a vector field.

Unit 7: 3 Lectures: L23 to L25

Unit 8

Gauss’ Law; Equation of Continuity. Hydrodynamics and Electrodynamics illustrations.

Unit 8: 3 Lectures: L26 to L28

Unit 9

Fluid Flow, Bernoulli’s Principle. Equation of motion for fluid flow. Definition of curl, vorticity, Irrotational flow and circulation. Steady flow. Bernoulli’s principle, some illustrations. Applications of Gauss’ divergence theorem and Stokes’ theorem in fluid dynamics.

Unit 9: 2 Lectures: L29,L30

Unit 10

Classical Electrodynamics and the special theory of relativity. Introduction to Maxwell’s equations.

No single text covers the vast range of topics and the novel treatment of the subject material dealt with in this course. A very large number of books and original literature in Physics education journals (such American Journal of Physics) has been referred to develop the course contents. Useful sources include the following:

Fundamentals of Physics, Volume 1 David Halliday, Robert Resnick, and Jearl Walker. Hardcover, Wiley (2007).

The Feynman Lectures on Physics, Vol. I & II Richard P. Feynman, Robert B. Leighton, Matthew Sands. Hardcover, Addison Wesley; 2 edition (2005).

Mechanics ( Berkeley Physics Course, Vol. I ) Charles Kittel, Walter D. Knight, Malvin A. Ruderman, and A. Carl Helmholz. Hardcover, McGraw-Hill (1973).

'Analytical Mechanics' Grant R. Fowles and George L. Cassiday (Brooks Cole; 7 edition, 2004).

John R. Taylor 'Classical Mechanics' University Science Books (January 1, 2005).

James Gleick: Chaos - making a new science William Heinemann Ltd. (1988, Great Britain).

David R. Griffiths Introduction to Electrodynamics (3rd Edition) (Benjamin Cummings, 1999).

P. Chaitanya Das, G. Srinivasa Murty, K. Satish Kumar, T A. Venkatesh and P. C. Deshmukh , Motion of Charged Particles in Electromagnetic Fields and Special Theory of Relativity Resonance, Vol. 9, Number 7, 77-85 (2004).

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