# 2015 A Level Physics

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The PowerPoint slideshows on this page are for the 2015 EdExcel A Level Physics syllabus and the entire syllabus is covered by these slideshows (there is no PowerPoint for Topic 1 as it should be taught as part of the other topics).

# Powerpoints for the following units:

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## Physics:

## Topic 10 - Space

This slideshow covers: luminosity, intensity, using intensity measurements to determine distance, trigonometric parallax, standard candles, the Hertzsprung-Russell diagram, red shift and how it relates to the Big Bang theory, spectra, Hubble's Law, Hubble's Constant, the end of the universe.

## Topic 11 - Nuclear Radiation

This topic covers: the unified atomic mass unit, binding energy, energy-mass equivalence, binding energy per nucleon, fusion and fission, background radiation, ionisation, types of radiation, changes in mass and proton number, blocking radiation, radioactive decay, half life, exponential decay, relating decay to half life.

## Topic 12 - Gravitational Fields

Use this slideshow to help you teach gravitational fields! It covers: Newton's Law of Gravitation, gravity and centripetal force, the Earth's gravitational field, gravitational field strength, gravitational potential, comparing gravitational to electromagnetic fields.

## Topic 13 - Oscillations

This slideshow covers: circular motion, radians, simple harmonic motion, displacement, velocity and acceleration graphs for SHM, pendulums and oscillating masses, energy changes during SHM, damping, free vs forced oscillations, resonance.

## Topic 2 - Mechanics

Over 100 slides to teach the Mechanics (Topic 2) unit from the 2015 EdExcel A Level syllabus. This slideshow covers motion under constant acceleration, distance and speed-time graphs, equations of motion, vector and scalar quantities, vectors, resolving vectors, falling under gravity, projectile motion, Newton's Laws of Motion, free body force diagrams, momentum, conservation of momentum in collisions and explosions, impulse, turning moments, the principle of moments, kinetic energy, gravitational potential energy, work done, conservation of energy, power and efficiency.

## Topic 3 - Electricity

This slideshow covers the following content of the 2015 EdExcel A Level Physics course: electric current, charge and Q=It, current and voltage in series and parallel circuits, resistance, Ohm's Law and Ohmic conductors, resistors in series and parallel and how to calculate the equivalent resistance, electrical power, power loss through a resistor, current-voltage graphs for resistors, bulbs and diodes, movement of electrons, determining and using resistivity, drift speed, semiconductors and how their resistance is changed by heat or light, how voltage changes through a circuit, potential dividers, EMF, internal resistance and how to calculate it.

## Topic 4 - Materials

This slideshow covers the following content: density and how to calculate it, upthrust, aerodynamics, viscosity and Stokes' Law, force and extension in different materials, Hooke's Law, elastic limit, limit of proportionality, elastic strain energy, energy changes in deformed materials, stress and strain, the Young Modulus, stress-strain graphs, breaking stress, yield points.

## Topic 5 - Waves and the Particle Nature of Light

This PowerPoint covers the whole of the Topic 5 - Waves unit from the 2015 EdExcel A Level Physics course. It includes: basics about waves, the wave equation, transverse and longitudinal waves, wavefronts, phase difference, coherence, superposition, constructive and destructive interference, path difference, standing waves, measuring the speed of a wave along a string, travelling waves, reflection, refraction, Snell's law, critical angles, measuring the refractive index, converging and diverging lenses, drawing ray diagrams, the lens equation, magnification, combining lenses, polarisation, polarising microwaves, diffraction, Huygens' Principle, interference patterns, measuring the wavelength of laser light, wave-particle duality, electron diffraction, pulse-echo, ultrasound, photoelectric emission, the particle nature of light, photon energy, photons, electronvolts, absorption and emission spectra, transitions between energy levels.

## Topic 6 - Further Mechanics

This slideshow covers these topics: momentum and Newton's second law, conservation of momentum in collisions and explosions, conserving momentum in two dimensions, energy loss in collisions, elastic and inelastic collisions, particle energy and momentum, circular motion, centripetal force and centripetal acceleration.

## Topic 7 - Electric and Magnetic Fields

This slideshow covers: electric fields around a point charge, Coulomb's Law, electric field strength around a point charge, electric potential and its definition, equipotentials around a point charge, uniform electric fields, equipotentials in a uniform electric field, potential gradients, how capacitors work, charging and discharging a capacitor, time constant, storing energy in a capacitor, exponential decay in capacitors, magnetic fields, Fleming's Left Hand Rule, the motor effect, magnetic forces on charged particles, circular paths in magnetic fields, electromagnetic induction, generators, transformers, flux and flux linkage, Faraday's Law, Lenz's Law, RMS value and how to calculate it.

## Topic 8 - Nuclear and Particle Physics

Use this slideshow to help you teach Particle Physics. It covers: the structure of the atom, the Rutherford Scattering Experiment, atomic and nucleon numbers, thermionic emission, linear accelerators, cyclotrons, using electric and magnetic fields in accelerators, ionisation, particle track diagrams, energy-mass equivalence, nuclear fusion and fission with energy-mass equivalence, the Standard Model, quarks and leptons, hadrons and baryons, symmetry, conserving properties in particle interactions.

## Topic 9 - Thermodynamics

This PowerPoint covers the following topics: specific heat capacity, calibrating a thermistor, heating ice, latent heats of fusion and vapourisation, particle motion in gases, pressure and volume in gases, pressure, temperature and absolute zero, the Ideal Gas equation, RMS speed, kinetic theory, molecular speed and temperature, blackbodies, luminosity, radiation and temperature of a blackbody, Wien's Law.