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 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 Chemistry: Aromatic Compounds is apart of the Module 6: Organic Chemistry and Analysis. All presentations come with worked examples, solutions and homeworks. 27.1 Amines 27.2 Amino acids, Amides and Chirality 27.3 Condensation Polymers Aliphatic and aromatic hydrocarbons Amines being derived from ammonia (NH3) Classifying amines as primary, secondary, and tertiary Naming amines Naming ammonium salts Amines neutralisation reactions with acids Preparation of aliphatic amines Preparation of aromatic amines Locants: alpha, beta, and gamma Functional groups of amino acids General formula for amino acids Reactions of amino acids (alkali and acid) Esterification of amino acids Amide functional groups Naming amide molecules Drawing optical isomers Explanation of superimposable and non-superimposable images Identifying chiral centers Recap of addition polymerisation Identifying monomers and repeat units from condensation polymers Polyesters and ester links Polyamides and amide links Polyesters and polyamides formed from one monomer Polyesters and polyamide formed from two monomers Alkali hydrolysis of polyamides and polyesters Acid hydrolysis of polyamides and polyesters

OCR A level Chemistry: Organic Synthesis is apart of the Module 6: Organic Chemistry and Analysis. All presentations come with worked examples, solutions and homeworks. 28.1 Carbon-Carbon Bond Formation 28.2 Further Practical Techniques 28.3 Further Synthetic Routes Forming nitriles from haloalkanes Forming nitriles from aldehydes and ketones Forming amines from nitriles (reduction) Forming carboxylic acids from nitriles (hydrolysis) Friedel-Crafts alkylation of benzene Acylation of benzene with acyl chloride Filtration under reduced pressure Purification through Recrystallisation Preparation of Melting Point Sample Melting point determination with an electric heater Melting point determination with a Thiele tube Functional groups Reactions of benzenes Reactions of phenols Common reactions between different functional groups Reaction conditions and reagents

OCR A level Chemistry: Chromatography and Spectroscopy is apart of the Module 6: Organic Chemistry and Analysis. All presentations come with worked examples, solutions and homeworks. 29.1 Chromatography and Functional Group Analysis 29.2 Nuclear Magnetic Resonance (NMR) Spectroscopy 29.3 Carbon-13 NMR Spectroscopyy 29.4 Proton NMR Spectroscopy 29.5 Interpreting Proton NMR Spectra 29.6 Combined Techniques Thin layer chromatography (TLC) Rf values Gas chromatography (GC) Gas chromatograms Retention time and peak integrations Calibration curves from retention time and relative peak area Differentiation of functional groups: alkene, primary and secondary alcohols, aldehydes, cabonyl compounds, carboxylic acids, and haloalkes. Nuclear Spin Resonance Tetramethylsilane (TMS) Chemical Shift ẟ Identifying different carbon environments The types of carbon environment The amount of chemical shift ẟ / ppm Identifying the number of different proton environments Identifying the types of proton environment and chemical shifts Integration traces (area of peaks) and relative number of protons The spin-spin splitting pattern (n + 1) Predicting proton NMR spectra for molecules Identifying the number of different proton environments Identifying the types of proton environment and chemical shifts Integration traces (area of peaks) and relative number of protons Percentage yield to determine empirical formula Mass spectra Infrared spectra Carbon-13 NMR spectra Proton NMR spectra

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.