## Trinity College Dublin, The University of Dublin

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# PY2P10

## Module PY2P10/PY2N10/PY2T10 Classical Physics

Cohort: SF Science (Physics), SF Nanoscience, Physics and Chemistry of Advanced Materials, SF Theoretical Physics, SF Chemistry with Molecular Modelling

Credits: 10

Duration: Michaelmas Term

This module combines four elements of classical physics as follows:

## Thermodynamics

Lecturer: Prof. G. Cross
Duration: 12 lectures

Description:
First law of thermodynamics. Internal energy, heat and work. Reversible and irreversible processes. Specific heat. Second law of thermodynamics. Heat engines, Carnot cycles. Entropy. Probability and disorder. Combined first and second laws. Central equation. H, F, G. Maxwell's relations. Energy equations. Cooling processes. Joule-Kelvin effect. Third law of thermodynamics. Van der Waals model for real gases.

## Electricity and Magnetism II

Lecturer: Prof. H. Zhang
Duration: 14 lectures

Description:
Magnetism, magnetic field lines and flux; Lorentz force on moving charge; Energy of and torque on a current loop in a magnetic field; magnetic fields of moving charges; Biot-Savart Law illustrated by magnetic fields of a straight wire and circular loop; forces between current-carrying straight wires; Ampere’s Law in integral form illustrated by field of a straight conductor of finite thickness. Electromagnetic induction and Faraday’s Law in integral form; Lenz’s Law; induced electric fields and motional emf’s; summary of Maxwell equations in integral form; Mutual inductance and self-inductance. R-L circuits and L-R-C circuits. AC circuits, phasor diagrams, reactance, resonance, transformers and complex representation of reactance. Power analysis. R-C integration and differentiation, R-C low- and high-pass filters and active filters.

## Materials

Lecturer: Prof. S. Dooley *Taking place in Hilary Term*
Duration: 10 lectures

Description:
Inter- and intra- molecular forces, potential energy curves, heat capacity, thermal expansion and conductivity. Stress, strain, shear, elastic and plastic deformations of solids. Structures of solids in crystalline, glass, plastic phases. Insulators, conductors and semiconductors. Point defects and imperfections in solids – Iron/Carbon system. Density, pressure, surface tension, buoyancy and hydrodynamic-incompressible and compressible flows in fluids. Bernoulli's equation. Viscosity, diffusion, laminar and turbulent flow. Gas laws, kinetic theory and collisions, PVT diagrams, thermal expansion. Conductive, convective and radiative transport of heat. Stefan-Boltzmann law.

## Oscillations

Lecturer: Prof. M. Hegner
Duration: 12 lectures

Description:
Review of simple harmonic motion. Forced and damped oscillations. Resonance. Two coupled oscillators, modes and normal coordinates. Many coupled oscillators. Transition to continuous systems. Waves. Nonlinear behaviour. Anharmonic behaviour.
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