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IB Physics

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Physics

Physics:

Topic 1 - Measurements and Uncertainties

This slideshow covers the content of Topic 1 from the IB Physics course. It includes: standard form, prefixes, SI units, derived units, estimations, true values, accuracy, uncertainty expressed as an absolute and as a percentage, example micrometer measurements, percentage differences, precision, random errors, zero errors, systematic errors, drawing error boxes on a graph, uncertainties in gradients, compounding uncertainties, vector quantities, how to resolve vectors.

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Topic 2 - Mechanics

This slideshow covers Topic 2 from the IB Physics course, including: distance, speed and time, acceleration, distance vs displacement, speed vs velocity, vector and scalar quantities, distance-time graphs, velocity-time graphs, equations of motion for uniformly accelerating objects (SUVAT equations), resolving vectors, vertical projection, projectile motion, terminal velocity in liquids, different types of force, the four fundamental forces, weight vs mass, Newton's 3 Laws of Motion, free body force diagrams, friction, the coefficient of friction, static and dynamic friction, types of energy, calculating kinetic and gravitational potential energy, conservation of energy and using it to determine speed, elastic potential energy, work done, power, efficiency, momentum, conservation of momentum in collisions and explosions, impulse, force-time graphs and change in momentum, energy loss in collisions, elastic and inelastic collisions, kinetic energy of particles.

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Topic 3 - Thermal Physics

This slideshow covers: revision of particle theory, specific latent heat, energy changes during changes of state, latent heat of fusion, specific heat capacity, how to determine specific heat capacity and specific latent heat by experiment, particle motion in gases, pressure, pressure and volume in gases, Boyle's Law, pressure and temperature in gases, absolute temperature, Charles' Law, moles and molecules, the Ideal Gas Equation, real gases vs ideal gases, molecular speed and temperature.

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Topic 4 - Waves

This topic covers the entire "Waves" unit from the International Baccalaureate Physics course, including: definitions of terms such as amplitude and frequency, phase difference, simple harmonic motion, graphs of displacement, velocity and acceleration for SHM, maximum values for SHM, energy changes during SHM, travelling waves, the wave equation, transverse and longitudinal waves, measuring the speed of waves, electromagnetic radiation, the EM spectrum, wavefronts, dissipation of a wave, superposition, constructive and destructive interference, polarisation, Malus' Law, reflection of waves, refraction of waves, Snell's Law, the critical angle, example questions on the critical angle, measuring the refractive index of a material, diffraction, path difference, interference patterns from single and double slits, Young's Double Slit experiment, standing waves, nodes and antinodes, harmonics in wind and string instruments, nodes and antinodes in open and closed pipes.

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Topic 5 - Electricity and Magnetism

This slideshow includes PowerPoint slides to help you teach topic 5 from the IB Physics course, including: electric current, conventional current, revision of AC and DC, charge and current, calculating charge using Q=It, definition of voltage, electrical work done, electric fields and point charges (positive and negative), Coulomb's Law, uniform electric fields, the electronvolt, carrier density, drift speed, drift speeds down wires of different areas, current and voltage in series and parallel circuits, Kirchoff's Laws, resistances of voltmeters and ammeters, the heating effect of currents, V=IR, calculating resistance, Ohmic and non-Ohmic conductors, I-V graphs for bulbs and diodes, resistors in series and parallel circuits, potential dividers, practical applications of potential dividers in circuits, resistivity, electrical power, EMF, internal resistance, electric potentials, how cells lose voltage over time, recharging a battery, magnetic fields around bar magnets and wires, making an electromagnet, the motor effect, F=BIL, charged particles in magnetic fields, F=BQv, circular paths of charged particles.

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Topic 6 - Circular Motion and Gravitation

This slideshow covers: circular motion and how it relates to speed and velocity, centripetal acceleration, centripetal force, using radians, circular motion equations with example questions, Newton's Law of Gravitation, gravitational fields, gravity and centripetal force, gravitational field strength, comparison between gravitational and electromagnetic fields.

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Topic 7 - Atomic, Nuclear and Particle Physics

This slideshow covers: spectra, absorption and emission spectra, energy levels, converting energy changes into discrete energy levels, absorption and emission of radiation and how it relates to energy levels, facts about the atom, mass and atomic number, isotopes, background radiation, changes in mass and proton number during radioactive decay, blocking radiation, half life, evidence for neutrinos, radioactive decay equations, the unified atomic mass unit, binding energy, energy-mass equivalence, binding energy by nucleon, nuclear fusion and fission, calculating energy released by fission and fusion, using different units for mass, the structure of an atom, Rutherford Scattering, fundamental particles, the Standard Model, quarks and their properties, antiquarks, baryons and mesons, hadrons and leptons, conserving properties such as lepton number and baryon number, four fundamental forces, exchange bosons, particle interactions, Feynman diagrams and how to draw them, strangeness, confinement, the Higgs Boson.

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Topic 8 - Energy Production

This slideshow matches topic 8 from the IB Physics course, including: efficiency, drawing energy transfers, Sankey Diagrams, comparing efficient and non-efficient bulbs, fuels, renewable and non-renewable sources of energy, power stations, energy changes in power stations, fossil fuels, nuclear power and how it works, primary and secondary energy sources, wind power, hydroelectric power, solar power, specific energy, energy density, conduction in metals and non-metals, convection currents, infra-red radiation, heat transfer in practical situations, luminosity, blackbodies, emissivity, intensity, the Solar Constant, albedo, how colour relates to temperature, radiation from blackbodies, Wien’s Displacement Law, the temperature of the Earth and what it depends on, the Greenhouse Effect, absorption of radiation by the atmosphere, average temperature of the Earth, Wien’s Law and the Greenhouse Effect.

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