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Saturday, September 04, 2004
I've decided to concentrate on physics for the time being...
Syllabus: Syllabus of APhO A. Theoretical Part 1) Mechanics Foundation of kinematics of a point mass Vector description of the position of the point mass velocity and acceleration as vectors Newton's laws, inertial systems Problems may be set on changing mass Closed and open systems, momentum and energy, work, power Conservation of energy, conservation of linear momentum, impulse Elastic forces, frictional forces, the law of gravitation, potential energy and work in a gravitational field Hooke's law, coefficient of friction (F/R=const), frictional forces static and kinetic, choice of zero of potential energy Centripetal acceleration, Kepler's law 2) Mechanics of Rigid Bodies Statics, center of mass, torque Couples, conditions of equilibrium of bodies Motion of rigid bodies, translation, rotation, angular velocity, angular acceleration, conservation of angular momentum Conservation of angular momentum about fixed axis only External and internal forces, equation of motion of a rigid body around the fixed axis, moment of inertia, kinetic energy of a rotating body Parallel axes theorem (Steiner's theorem), additivity of the moment of inertia Accelerated reference systems, inertial forces Knowledge of the Coriolis force formula is not required 3) Hydromechanics No specific questions will be set on this but students would be expected to know the elementary concepts of pressure, buoyancy and the continuity law. 4) Thermodynamics and Molecular Physics Internal energy, work and heat, first and second laws of thermodynamics Thermal equilibrium, quantities depending on state and quantities depending on process Model of a perfect gas, pressure and molecular kinetic energy, Avogadro's number, equation of state of a perfect gas, absolute temperature Also molecular approach to such simple phenomena in liquids and solids as boiling, melting etc. Work done by an expanding gas limited to isothermal and adiabatic processes Proof of the equation of the adiabatic process is not required The Carnot cycle, thermodynamic efficiency, reversible and irreversible processes, entropy (statistical approach), Boltzmann factor Entropy as a path independent fiction, entropy changes and reversibility, quasistatic processes 5) Oscillations and Waves Harmonic oscillations, equation of harmonic oscillation Solution of the equation for harmonic motion, attenuation and resonance-qualitatively Harmonic waves, propagation of waves, transverse and longitudinal waves, linear polarisation, the classical Doppler effect, sound waves Displacement in a progressive wave and understanding of graphical representation of the wave, measurements of velocity of sound and light, Doppler effect in one dimension only, propagation of waves in homogeneous and isotropic media, reflection and refraction, Fermat's principle Superposition of harmonic waves, coherent waves, interference, beats, standing waves Realisation that intensity of wave is proportional to the square of its amplitude. Fourier analysis is not required but candidates should have some understanding that complex waves can be made from addition of simple sinusoidal waves of different frequencies. Interference due to thin films and other simple systems (final formulae are not required), superposition of waves from secondary sources (diffraction) 6) Electric Charge and Electric Field Conservation of charge, Coulomb's law Electric field, potential, Gauss' Law Gauss' law confined to simple symmetric systems like sphere, cylinder, plate, etc, electric dipole moment Capacitors, capacitance, dielectric constant, energy density of electric field 7) Current and Magnetic Field Current resistance internal , resistance of source Ohm's law, Kirchoff's laws, work and power of direct and alternating currents, Joule's law Simple cases of circuits containing non-ohmic devices with known V-I characteristics Magnetic field (B) of a current , current in a magnetic field Lorentz force Particles in a magnetic field, simple applications like cyclotron, magnetic dipole moment Ampere's law Magnetic field of simple symmetric systems like straight wire, circular loop and long solenoid Law of electromagnetic induction, magnetic flux, Lenz's law, self-induction, inductance, permeability, energy density of magnetic field Alternating current, resistors, inductors and capacitors in AC-circuits, voltage and current (parallel and series) resonance Simple AC-circuits, time constants, final formulae for parameters of concrete resonance circuits are not required 8) Electromagnetic Waves Oscillatory circuit, frequency of oscillations, generation by feedback and resonance Wave optics, diffraction from one and two slits, diffraction grating, resolving power of a grating Bragg reflection Dispersion and diffraction spectra, line spectra of gases Superposition of polarised waves Electromagnetic waves as transverse waves, polarisation by reflection, polarisers Resolving power of imaging systems Black body, Stefan-Boltzmann's law Planck's formula is not required 9) Quantum Physics Photoelectric effect, energy and impulse of the photon Einstein's formula is required De Broglie wavelength, Heisenberg's uncertainty principle 10) Relativity Principle of relativity, addition of velocities, relativistic Doppler effect Relativistic equation of motion, momentum, energy, relation between energy and mass, conservation of energy and momentum 11) Matter Simple applications of the Bragg equation Energy levels of atoms and molecules (qualitatively), emission, absorption, spectrum of hydrogen like atoms Energy levels of nuclei (qualitatively), alpha-, beta- and gamma-decays, absorption of radiation, half-life and exponential decay, components of nuclei, mass defect, nuclear reactions http://www.apho.org/en/home/index.php Somebody said that at 9:20 PM - x - - x -
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