Module Identifier 
PH23620 
Module Title 
MODERN PHYSICS 
Academic Year 
2007/2008 
Coordinator 
Dr Tudor E Jenkins 
Semester 
Semester 1 
Other staff 
Professor Keith Birkinshaw, Dr Eleri Pryse 
PreRequisite 
Successful completion of Part 1 FH56 Degree Scheme 
Course delivery 
Lecture  40 Hours. 40 X 1 hour Lectures 

Seminars / Tutorials  4 
Assessment 
Assessment Type  Assessment Length/Details  Proportion 
Semester Exam  3 Hours written examination  70% 
Semester Assessment  Course work: Example Sheets.  30% 
Supplementary Exam  3 Hours written examination  100% 

Learning outcomes
On successful completion of this module students should be able to:
1. Apply the concepts of quantum mechanics in molecules, atoms, nuclei and fundamental particles
2. Define a photon and give examples which illustrate its importance
3. State the de Broglie hypothesis and outline the experimental evidence for it.
4. Interpret the wavefunction and use it to demonstrate the key concepts of quantisation of particles in potential wells.
5. Analyse experimental data in terms of quantisation
6. Demonstrate quantum ideas in the understanding of molecular and condensed matter physics
7. Summarise the basic structure of nuclei
8. Explain the stability or otherwise of nuclei
9. Explain the classification of elementary particles into quarks and leptons
10. Describe the basic principles of Dynamics and Special Relativity;
11. Model problems in dynamics and special relativity with mathematical equations, apply basic solution techniques to these equations and interpret the results in the original physical context;
12. Solve numerical problems in linear and rotational dynamics and in special relativity.
Content
QUANTUM PHYSICS
The concept of the photon  photoelectric effect and Compton scattering
Matter waves and the de Broglie relation. Verification by DavissonGermer
The wavefunction and its interpretation.
Quantisation  examples in square well potential, simple harmonic oscillator potential and Coulombic potential. Line spectra and the FranckHertz experiment.
The Heisenberg Uncertainty Principle
The Schrodinger equation and the quantum numbers of hydrogen. Electron spin. The Pauli Exclusion Principle and multielectron atoms.
Tunneling of particles through potential barriers.
Molecular orbitals and covalent bonding.
Ionic and van der Waals bonds. Interatomic energy curve.
Crystalline and amorphous solids. Types of crystals, crystal organisation.
Electrons in crystals: introduction to band theory. Conductors, insulators, semiconductors
The atomic nucleus. Structure of the nucleus and its experimental determination
Radioactivity
The Standard model of elementary particles.
VECTORS
Recap: scalar and vector quantities, position vector, vector components, unit vectors, scalar and vectors products.
DYNAMICS
Kinematics: constant acceleration, projectile motion
Newton's Law of Motion: momentum, weight, contact forces on solids, friction, circular motion and centripetal face, drag force.
Work and Energy: work done by face, kinetic energy, power, conservative force, potential energy, conservation of mechanical energy.
Conservation of Momentum: centreofmass, collisions, coefficient of restitution, rocket propulsion
Gravity: Kepler's Laws, Newton's Law of Gravity, gravitational potential energy
RELATIVITY
Introduction and discussion of the shortcomings of prerelativistic physics, which lead to the simple postulates of Special Relativity, with spectacular results in our understanding of space and time. The LorentzEinstein transformations are derived from the postulates, leading to an understanding of timedilation and Lorentz contraction.
Brief description
This module will provide a systematic understanding of the principles of modern physics from its origins to classical physics. The two strands will be used to develop the central concepts of dynamics, energy and momentum embodied in Newton's Laws and the way in which these are altered in Einstein's theory of Special Relativity. The counterintuitive concepts of Quantum Physics like waveparticle duality will be formulated and contrasted with the concepts of Classical Physics. Both approached will be used to accurately predict physical phenomena in space and time, both on the macroscopic and on the microscopic scale. This will enable uncertainty and ambiguity to be understood at the quantum level and the precise orbits of the planets to be appreciated on astronomical scales. It will also provide the conceptual framework for understanding the fundamental properties of atoms, molecules and materials.
Reading Lists
Books
** Recommended Text
P.A. Tippler Physics for Scientists and Engineers
Freeman Worth 1572596732
** Supplementary Text
A.P. French Newtonian Mechanics
Van Nostrand Reinhold
A.P. French Special Relativity
Van Nostrand Reinhold
Beiser Concepts of Modern Physics
McGrawHill
Wher, Richards and Adair Physics of the Atom
AddisonWesley
Notes
This module is at CQFW Level 5