A Level Physics
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These PowerPoint slideshows and resources are matched to the EdExcel 2008 A Level Physics syllabus. Your account will enable you to download these PowerPoints AND any other new files for the next 12 months!
Powerpoints for the following units:
EdExcel Unit 1 - Physics on the Go
Mechanics: Standard prefixes, SI units, derived units, homogeneity, vector and scalar quantities, displacement-time graphs, velocity-time graphs, acceleration-time graphs, measuring acceleration, motion graphs for a bouncing ball, equations of motion, vertical projection, projectile motion, Newton's laws of motion, resolving vectors, the four types of force, Newton's Force Pairs, free body force diagrams, kinetic energy, gravitational potential energy, work done, power, conservation of energy. Materials: Density, pressure in fluids, floating, upthrust in fluids, Archimedes' Principle, aerodynamics, laminar flow and turbulent flow, viscosity, Stokes' Law, terminal velocity in fluids, force-extension graphs for springs, rubber and steel, calculating the spring constant, elastic strain energy, stress and strain, the Young Modulus, stress-strain graphs for different wires, hysterisis in rubber, ductility and malleability, example graph questions.
EdExcel Unit 2 - Physics at Work
Waves: Transverse and longitudinal waves, oscillating systems, phase difference, the wave equation, the electromagnetic spectrum and its uses and dangers, reflection and refraction, refractive index, Snell's Law, measuring refractive index, critical angles, total internal reflection, polarisation, using polarised light, pulse-echo techniques, ultrasound, the Doppler Effect, coherence, superposition, constructive and destructive interference, path difference, Young's Double Slit experiment, interference patterns from 2 slits, interferometers, how CD players work, stationary waves, standing waves, harmonics and wind instruments, diffraction, image resolution, electron diffraction. Electricity: Basic principles of electric currents, calculating charge, how current and voltage behave in series and parallel circuits, Kirchoff's laws, voltage-position graphs, EMF, resistors in series and parallel, carrier density, drift speed, resistivity, potential dividers, current-voltage graphs, internal resistance. The Nature of Light: Intensity, photoelectric emission, E=hf, calculating the energy of a photoelectron, photon energy, spectra, emission and absorption spectra, energy levels.
EdExcel Unit 4 - Physics on the Move
Further Mechanics: Momentum, conservation of momentum, Newton's 2nd law, impulse, resolving vectors, momentum in two dimensions, energy loss in collisions, elastic collisions, collisions between particles, circular motion, centripetal force, centripetal acceleration, radians, circular motion equations. Electric and Magnetic Fields: Coulomb's law, electric fields around point charges, electric field strength, electric fields between charged plates, potential gradients, equipotentials, capacitors, charging and discharging capacitors, time constant, exponential decay, magnetic fields, magnetic fields around current-carrying wires and solenoids, magnetic flux density, magnetic forces on charged particles, the motor effect, electromagnetic induction, AC generators, magnetic flux, Faraday's law, Lenz's law, magnetic field around the Earth. Particle Physics: The structure of the atom, Rutherford scattering, electron beams, cathode ray tubes, the electronvolt, diffraction of electrons, De Broglie wavelength, LINACs, cyclotrons, colliding atoms, particle detector images, understanding particle tracks, energy-mass equivalence, the atomic mass unit, nuclear fission, nuclear fusion, matter-antimatter, fundamental particles, high energy scattering, deep inelastic scattering, quarks, leptons, antiquarks, antileptons, baryons, mesons, hadrons, particle collision equations, conservation of mass, lepton and baryon number, exchange bosons.
EdExcel Unit 5 - Physics from Creation to Collapse
Astrophysics: Gravity on different planets, gravitational fields, Newton's Law of Gravitation, the Universal Gravitational Constant, gravity and centripetal force, the Earth's gravitational field, gravitational field strength, equipotentials, comparison between electric and gravitational fields, luminosity, intensity, using intensity to find distance, cepheid variable stars, Wien's law, the life cycle of a star, nebulae, main sequence, red giants and supergiants, dwarf stars, supernovae, black holes, star classes, the Hertzsprung-Russell diagram, trigonometric parallax, nuclear fission and fusion, E=mc2 in stars, red shift, Hubble's Law, the end of the universe. Oscillations: Cicular motion, centripetal acceleration, radians, simple harmonic motion, displacement-time, velocity-time and acceleration-time SHM graphs, maximum values, example questions, SHM applied to a pendulum and a spring, energy changes during an oscillation, damping, resonance. Nuclear Decay: Geiger counters, background radiation, ionisation, alpha, beta and gamma radiation, changes in mass and proton number, blocking radiation, radioactive decay, the decay constant, half life, decay curves, the unified atomic mass unit, binding energy, energy-mass equivalence, binding energy per nucleon, fusion in stars, nuclear fission, nuclear power stations. Thermal Physics: Pressure and volume in gases, Boyle's Law, pressure and temperature in gases, the Pressure Law, absolute temperature, the Kelvin scale, volume and temperature in gases, the ideal gas equation, internal energy, molecular speeds, RMS speed, specific heat capacity.
