OCR AS level Physics presentations for module 3: Materials. All presentations come with worked examples, solutions and homeworks. This covers topics from Hooke’s Law to Young Modulus.

OCR A level Physics: Chapter 23 Magnetic Fields is apart of the Module 6: Particle and Medical Physics All presentations come with worked examples, solutions and homeworks. 23.1 Magnetic fields 23.2 Understanding magnetic fields 23.3 Charged particles in magnetic fields 23.4 Electromagnetic induction 23.5 Faraday’s law and Lenz’s law 23.6 Transformers Attraction and repulsion of magnets Rules for magnetic field lines The magnetic field of Earth Applying the right-hand cork screw rule How to create uniformed magnetic fields Solenoids Fleming’s left hand rule Determining the direction of force on a current carrying conductor Calculating the magnitude of force on a current carrying conductor Angles between the magnetic field and current carrying conductor An experiment to determine the magnetic flux density of a field. Apply Fleming’s left-hand rule to charged particles Deriving an equation for the magnetic force experienced by a single charged particle (F = BQv) Charged particles describing (moving) in circular paths in magnetic fields. The velocity selector. The Hall probe and Hall voltage. Electromagnetic induction produces an induced e.m.f Conditions to produce electromagnetic induction How to increase electromagnetic induction Magnetic flux density, magnetic flux, and magnetic flux linkage Units of weber (Wb) Magnetic flux density and magnetic flux linkage Faraday’s Law Lenz’s Law Alternators and induced e.m.f. Graphs of flux linkage and induced e.m.f. Structure of transformers Step-up and step-down transformers The turn-ratio equation The ideal transformer equation Why transformers are used in the National Grid

OCR AS level Physics presentations for module 4: Waves 2 All presentations come with worked examples, solutions and homeworks. This covers topics from Superposition of Waves to Harmonics with different boundary conditions.

OCR AS level Physics presentations for module 3: Materials. All presentations come with worked examples, solutions and homeworks. This covers topics from Newton’s laws to conservation of momentum in two dimensions.

OCR AS level Physics presentations for module 3: Forces in Action. All presentations come with worked examples, solutions and homeworks. This covers topics from weight as a force to Archimedes’ principle.

OCR AS level Physics presentations for module 4: Energy, Power, and Resistance. All presentations come with worked examples, solutions and homeworks. This covers topics from Kirchhoff’s laws to potential dividers and sensing circuits.

OCR AS level Physics presentations for module 4: Waves 1 All presentations come with worked examples, solutions and homeworks. This covers topics from wave properties to Snell’s law and total internal reflection.

OCR A level Physics: Oscillations and Simple Harmonic Motion is a part of the Module 5: Newtonian World and Astrophysics. All presentations come with worked examples, solutions and homeworks.

OCR AS level Physics presentations for module 4: Quantum Physics. All presentations are full lesson PowerPoints with worked examples and homeworks with complete worked answers. The Photon Model Energy of a single photon Converting from electron-volts to Joules. Frequency of the electromagnetic spectrum Determining Plank’s constant with LEDs Threshold potential difference difference Photoelectric Effect Threshold frequency Producing photoelectrons Kinetic energy of photoelectrons Linking frequency and wavelength The electromagnetic spectrum, frequency and energy. Einstein’s Photoelectric Equation The photoelectric equation Work function and Kinetic Energy Determining work function from a graph Determining threshold frequency from a from graphical analysis. Determining Plank’s constant from graphical analysis. Wave Particle Duality deBroglie wavelength equation Diffraction of electrons and protons Comparing wavelengths of particles with different masses Kinetic energy and wavelength

OCR AS level Physics presentations for module 3: Work, Energy and Power. All presentations come with worked examples, solutions and homeworks. This covers topics from conservation of energy to derivations for kinetic energy.

OCR A level Physics: Chapter 21 Capacitance is apart of the Module 6: Particle and Medical Physics All presentations come with worked examples, solutions and homeworks. 21.1 Capacitors 21.2 Capacitors in circuits 21.3 Energy stored by capacitors 21.4 Discharging capacitors 21.5 Charging capacitors 21.6 Uses of capacitors Electrical quantities, symbols, and units SI prefixes and standard form Definition of a capacitor Structure of a capacitor Calculating capacitance, charge, and potential difference. Uses of capacitors in circuits. Rules for capacitors in parallel (potential difference, charge, and capacitance). Rules for capacitors in series (potential difference, charge, and capacitance). Applying the rules in series and parallel. Creating a circuit to calculate the charge stored on the capacitor. Work done of a capacitor depends upon the initial potential difference and capacitance. Work done is provided by the source of potential difference. Deriving three equations for work done of a capacitor. Exponential increase and exponential decay Explaining how capacitors discharge through a resistor in parallel Definition of time constant for a capacitor Showing that time constant has units of seconds Iterative method for finding how capacitors discharge Using exponentials and logs. Solving a differential equation (needed for A-level Maths). Explaining how capacitors charge with a resistor in series Explaining how 𝑉, 𝐼, or 𝑄, change with time 𝑡 for a charging capacitor. Sketching graphs for 𝑉, 𝐼, or 𝑄, after time 𝑡 for a charging capacitor. Calculating 𝑉, 𝐼, or 𝑄, change with time 𝑡 for a charging capacitor. Calculating power output from a circuit containing a capacitor A rectifier circuit - changing an alternating input to a smooth output

OCR AS level Physics presentations for module 4: Energy, Power, and Resistance. All presentations come with worked examples, solutions and homeworks. This covers topics from circuit symbols to paying for electricity. All circuit symbols required for OCR A level physics Polarity of cells and batteries Electron flow and conventional current Calculating the base SI units for volts Comparing potential difference and electromotive force (emf). Circuit diagrams for measuring potential difference and emf. Calculating energy dissipated in a circuit. The structure of an electron gun. The electron gun in the history of science (J.J. Thomson). Rearranging equations to equate kinetic energy and work done. Accelerating potential differences Comparing the protons and electrons accelerated in a potential difference Definition of an ohm. Temperature and resistance for metallic conductors (wires) The ohm in base SI units I against V graphs and resistance I-V Characteristics curves for ohmic components I-V Characteristics curves for non-ohmic components Circuit diagrams used to measure I and V. Describing I-V Characteristics curves Polarity of diodes Conventional current and diodes Plotting I-V curves for diodes Describing I-V curves for diodes Factors affecting resistance Calculating resistivity Resistivity and temperature Experimentally determining resistivity Using a graph to calculate resistivity Thermistor uses Thermistors with negative temperature coefficients Plotting I-V curves for thermistors Creating an experiment to test thermistors. Materials and uses of LDRs Creating an experiment to understand LDRs LDRs relationship with light intensity Converting time to hours Using different units for electrical energy Converting from J to kW hr Calculating the cost of using different electrical appliances.

OCR A level Physics: Thermal Physics apart of the Module 5: Newtonian World and Astrophysics. All presentations come with worked examples, solutions and homeworks.

OCR A level Physics: Chapter 19 Stars is apart of the Module 5: Newtonian world and Astrophysics. All presentations come with worked examples, solutions and homeworks. 19.1 Objects in the Universe 19.2 Life Cycles of Stars 19.3 Hertzsprung-Russell Diagram 19.4 Energy Levels in Atoms 19.5 Spectra 19.6 Analysing Starlight 19.7 Stellar Luminosity The size of astronomical objects: Universe, Galaxies, Solar systems, Stars, Planets, Planetary satellites, Comets, Artificial planetary satellites Comparing planets and comets The birth of stars Stars in equilibrium during the main sequence Calculating mass in kg from solar mass Life cycle of stars with a mass between 0.5 and 10 solar masses Life cycle of stars with a mass above 10 solar masses Pauli exclusion principle and electron degeneracy pressure Red giants and white dwarfs The Chandrasekhar limit Red supergiants to black holes and neutron stars Stellar nucleosynthesis Definition of luminosity Usual axis choice of a HR diagram. Identifying the positions of the main sequence, white dwarfs, red giants, and red supergiants. Description of how stellar evolution is shown in a Hertzsprung-Russell diagram Atoms have different electron arrangements Ground state energy Bound electron states being negative Converting between joules and electronvolts Calculating the change of energy between energy states Calculating a photon’s frequency and wavelength The electromagnetic spectrum and wavelengths Definition of spectroscopy Electrons and energy levels Continuous spectra Emission spectra from gases Absorption spectra from gases Electromagnetic interference Double slit experiment Path and phase difference Diffraction grating The grating equation Lines per millimeter to grating spacing Maximum order, n Maximum number of maxima The electromagnetic spectrum, frequency/wavelength, and temperature Black body radiation Wein’s displacements law Stefan’s law (Stefan-Boltzmann law)

OCR A level Physics: Thermal Physics apart of the Module 5: Newtonian World and Astrophysics. All presentations come with worked examples, solutions and homeworks.

OCR AS level Physics: Charge and Current is a part of the Module 4: Electrons, Waves, and Photons. All presentations come with worked examples, solutions and homeworks. Fundamental charge and relative charge Structure of a metal Conventional current and electron flow Measuring current with an ammeter Ionic solutions with cations and anions. Ions, relative charge and absolute charge Comparing ionic solutions and metal conductors Apply Kirchhoff’s First Law Kirchhoff’s First Law in mathematical form Kirchhoff’s First Law in written form Describing conservation laws Women in Science - Emmy Noether CERN and jobs in physics Number density for conductors, semi-conductors, and insulators Calculating cross-sectional area Apply the mean drift velocity equation. Derivation of Mean Drift Velocity Equation

OCR A level Physics: Ideal Gas is a part of the Module 5: Newtonian World and Astrophysics. All presentations come with worked examples, solutions and homeworks.

OCR A level Physics: Chapter 20 Cosmology (Big Bang) is apart of the Module 5: Newtonian world and Astrophysics. All presentations come with worked examples, solutions and homeworks. 20.1 Astronomical Distances 20.2 The Doppler Effect 20.3 Hubble’s Law 20.4 The Big-bang Theory 20.5 Evolution of the Universe Astronomical distances: light-years, parsec, astronomical unit Astronomical angles - degree, arcminute, arcsecond Parallax Angle The definition of the Doppler effect Changes in pitch of sound waves due to relative motion Absorption spectra and electron energy levels Red-shift and blue-shift absorption spectra The Doppler equation The condition for velocity for the Doppler equation The Cosmological Principle Hubble’s Observations Hubble’s Law Hubble’s constant and the gradient of a graph Converting between km s-1 Mpc-1 into s-1 The expanding Universe model. Georges Lemaître’s Theory Evidence for the Big Bang Model Hubble’s Law (expanding Universe) Microwave Background Radiation Source of the Microwave Background Radiation Hubble’s constant and the age of the Universe The evolution of the Universe from the Big-bang to 13.7 billion years later The composition of the Universe Experimental evidence for dark matter Experimental evidence for dark energy

All resources for P4 Magnetism and Magnetic Fields for GCSE OCR Physics Gateway 9-1.Triple and combined (Higher and Foundation) is covered in this material. • Magnets and Magnetic Fields • Currents and Fields • Right Hand Cork-screw Rule • Fleming’s Left Hand Rule • Currents and Forces • Motors • Electromagnetic Induction • Generators • Transformers • Speakers and Microphones