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Course: OCR Level 3 Alternative Academic Qualification Cambridge Advanced Nationals in Applied Science. Topic Area P1: Electricity Know the definition of electric current in metals and electrolytes Know the unit of current Conventional current and electron flow Direct current Know the unit of charge Elementary charge, e, including charge of an electron and proton Use of the equation: Charge © = current (A) × time (s) Know the definition of potential difference, with respect to work done Know the unit of potential difference How resistance is defined by: Resistance (Ω) = potential difference (V) current (A) Know the unit of resistance I-V characteristics of resistor, light-dependent resistor (LDR), filament lamp, thermistor, diode and light-emitting diode (LED) Use of the equation: Potential difference (V) = current (A) × resistance (Ω) Know Ohm’s law Resistance of NTC thermistors with temperature, and resistance of LDRs with light intensity Know the definition of power Know the unit of power Use of the equations: Power (W) = current (A) × potential difference (V) Power (W) = (current (A))2 × resistance (Ω) Power (W) = (potential difference (V))2 resistance (Ω) Work done (J) = potential difference (V) × current (A) × time (s) Work done (J) = potential difference (V) × charge © The definition of an electronvolt Circuit symbols The relationships between currents, voltages and resistances in series and parallel, including how potential difference varies for cells in series. Know Conservation of charge and Kirchoff’s first law Know Conservation of energy and Kirchoff’s second law Solving for resistors in series Solving for resistors in parallel The principles of a potential divider circuit The use of a potentiometer as a potential divider The use of potential divider circuits with LDRs and thermistors How to solve problems for potential divider circuits with potentiometers, LDRs and thermistors Use of apparatus, techniques and procedures to investigate potential divider circuits which may include a sensor such as a thermistor or an LDR

Course: OCR Level 3 Alternative Academic Qualification Cambridge Advanced Nationals in Applied Science. Topic Area 3: Medical Physics 3.1 - X-rays and ultrasound 3.2 -3.2 Radioactivity These PowerPoints is a whole lessons included with student activities and animated answers. Electron transitions Ground state, excited state, and ionised state The similarities and differences between the types of electromagnetic (EM) radiation, including in terms of production, penetration, uses, frequency and wavelength Know the definition of a quantum and a photon Use of the equations: Energy of a photon (J) = Planck constant (J s) × frequency (Hz) Energy of a photon (J) = Planck constant (J s) × speed of light in a vacuum (ms–1) / wavelength (m) Basic structure of an X-ray tube including: heater (cathode), anode, target metal and high voltage supply How X-rays are produced in an X-ray tube, including thermionic emission and energy transfers How tube current and voltage affects the X-ray beam Attenuation of X-rays by absorption and scattering Use of the attenuation of X-rays equation to calculate intensity Know mass attenuation coefficient Use of the mass attenuation coefficient equation. Examples of longitudinal and transverse waves including sound waves and electromagnetic waves Graphical representations of longitudinal and transverse waves Describe wave motion in terms of displacement, amplitude, wavelength, time period, frequency and wave speed. Describe the relationship between intensity and amplitude Use of the equations: Frequency Wave speed Intensity Know definition of ultrasound, including in medical contexts Reflection, and transmission of ultrasound Know that a transducer can both transmit pulses and receive reflected pulses Attenuation of ultrasound by absorption and scattering Impedance matching and coupling mediums How to interpret and use A-scans to solve problems Use of the equations: Density equation Acoustic impedance equation Intensity reflection coefficient equation The spontaneous and random nature of nuclear radioactive decay Know types of decay Properties of nuclear radiation (alpha, beta and gamma) Nuclear decay equations Know how to graphically determine the physical half-life of an isotope Biological, physical and effective half-lives Use of the activity equation Use of the equations to determine N/N0/A/A0 Use of the effective half-life equation Irradiation and contamination Physiological effects of radiation Mechanism of direct and indirect ionisation of biological molecules Absorbed and effective dose Ionisation and half-equations Know the definition of radiopharmaceuticals Use of radionuclides in sterilisation, cancer treatments and medical tracers How to select a radionuclide for an appropriate use

Course: OCR Level 3 Alternative Academic Qualification Cambridge Advanced Nationals in Applied Science. Topic Area P2: Motion How energy is stored How energy is transferred via energy carriers or pathways How diagrams can be used to represent energy transfers How to draw scale Sankey diagrams Know the definition of work done by a force Know the unit of work done Use of the equations: Work done (J) = force (N) × displacement (m) Work done (J) = force (N) × displacement (m) × cosθ Power (W) = work done (J) x time (s) Efficiency = useful energy transferred /total energy transferred SUVAT equations Kinetic energy equation Gravitational potential energy equation Elastic potential energy equation Determine the work done on a spring from a graph Apply conservation of energy to examples involving gravitational potential Law of conservation of energy energy, elastic potential energy, and kinetic energy Newton’s first and third laws of motion Newton’s second law of motion for constant mass Use of Newton’s three laws of motion including how to use free-body force diagrams to solve problems The vector–scalar distinction as it applies to displacement and distance, velocity and speed Use of apparatus, techniques and procedures to accurately determine the acceleration of free fall using trapdoor and electromagnet arrangement; light gates and timer

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: Gravitational Fields is apart of the Module 5: Newtonian world and Astrophysics. All presentations come with worked examples, solutions and homeworks. 18.1 Gravitational Fields 18.2 Newton’s law of gravitation 18.3 Gravitational field strength for a point mass 18.4 Kepler’s laws 18.5 Satellites 18.6 Gravitational potential 18.7 Gravitational potential energy The terms: eccentricity, aphelion, perihelion, astronomical unit Kepler’s First Law Kepler’s Second Law Kepler’s Third Law Graphs of T^2 against r^3 to determine the gradient (constant of proportionality, k). Equating (4π)^2/𝐺𝑀 to the gradient (constant of proportionality, k) Key features of geostationary and low polar orbit satellites Conditions for stable orbits for satellites Applying Kepler’s laws to the orbits of satellites Radial and uniformed field Definition of gravitational potential energy Deriving escape velocity Force-Distance graphs for gravitational fields Center of mass and treating spherical objects as point masses Gravitational fields Definition of gravitational potential Applying the gravitational potential equation Graph of gravitational potential against distance (V against r) Combining gravitational potentials from more than one mass

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 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

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 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 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 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 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: Chapter 25 Radioactivity is apart of the Module 6: Particle and Medical Physics All presentations come with worked examples, solutions and homeworks. 25.1 Radioactivity 25.2 Nuclear decay equations 25.3 Half-life and Activity 25.4 Radioactive Decay Calculations 25.5 Modelling Radioactive Decay 25.6 Radioactive Dating Types of ionising radiation (alpha, beta-plus/beta-minus, gamma) Penetration power and ionising power Detecting radiation with a Geiger (GM tube) counter Background radiation and correct count rates Electric and magnetic fields affect ionising radiation Cloud chambers Typical speeds of radiation produced form nuclear decays Conservation rules for nuclear decays Nuclear notation Alpha decays Beta-minus and beat-plus decays Gamma decays Decay chains The reason why radioactive decays are considered random and spontaneous Rolling dice being a good analogue for radioactive decays Definition of half-life Determining half-life from a graph. Calculating half-life from a table of data. Activity of a sample in Bq The decay constant derivation Decay constant and half-life Using exponentials to calculate activity and number of nuclei present Solving Differential Equations (beyond A-level Physics course) Iterative Method Selecting appropriate time intervals Comparing answers from the iterative method and exact solution. State what isotopes of carbon are used in carbon dating. Explain how carbon dating works. Calculate the age of objects with carbon dating.

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 A level Physics: Chapter 22 Electric Fields is apart of the Module 6: Particle and Medical Physics All presentations come with worked examples, solutions and homeworks. 22.1 Electric Fields 22.2 Coulomb’s Law 22.3 Uniform electric fields and capacitance 22.4 Charged particles in uniformed electric fields 22.5 Electric potential and energy Electric field line pattern from point charges, uniformly charged objects, and capacitors. Rules for electric field lines Interacting field lines for attraction and repulsion Detecting electric fields with a charged gold leaf Definition of electric field strength Explaining that electric field strength is a vector with magnitude and direction Apply the equation for electric field strength Electric force related to the product of charge and square of the separation The constant of proportionality 𝑘 Permittivity of free space Experiment for investigating Coulomb’s Law Electric Field Strength and Coulomb’s Law Liquid crystal displays (LCDs) Electric field between two charged parallel plates Deriving an equation for electric field strength of a parallel plate capacitor. Accelerating charged particles in a uniformed electric field Capacitance of a parallel plate capacitor with an insulating (dielectric) material - relative permittivity Millikan’s experiment Equations for constant acceleration Maximum kinetic energy of a charged particle in a uniformed field Sketching trajectories for charged particles in uniformed fields Calculating velocities for horizontal and vertical components Definition of electric potential energy Definition of electric potential. Definition of electric potential difference. Using a force-distance graph to determine electric potential energy Using electron-volts and joules in calculations Capacitance of an isolated charged sphere

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 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 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 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.