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A level Chemistry: Proton NMR Spectroscopy
OCR A level Chemistry: 29.4 Proton NMR Spectroscopy
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
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)
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A Level Chemistry: Electrophilic Substitution Reactions of Benzene
OCR A level Chemistry: 25.2 Electrophilic Substitution Reactions of Benzene
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
Defining an electrophile
Substitution reactions
Nitration of Benzene
Reaction mechanisms
Halogenation of Benzene
Common Halogen Carriers
Friedel-Crafts Alkylation Reactions
Acyl Chloride
Acylation Reactions of Benzene
Reactivity of Alkenes and Arenes
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A Level Chemistry: Carbonyl Compounds
OCR A level Chemistry: 26.1 Carbonyl Compounds
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
The carbonyl group
Differentiating between aldehydes and ketones
Naming aldehydes and ketones
Oxidation of aldehydes
Electronegativity and polar bonds
Electrophiles, nucleophiles, and nucleophilic addition reactions
Reducing carbonyl compounds with sodium tetrahydridoborate(III) (NaH4)
Primary and secondary alcohols from carbonyl compounds
Reacting carbonyl compounds with hydrogen cyanide (HCN)
Reaction mechanisms for nucleophilic addition using (NaBH4)
Reaction mechanisms for nucleophilic addition using (HCN)
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OCR A level Physics: Cosmology (Big Bang)
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
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GCSE Chemistry: Carboxylic Acids
This PowerPoint presentation with worked examples and student questions covers:
• Functional groups of carboxylic acids, alcohols, alkanes, and alkenes.
• Mnemonic device for naming carboxylic acids
• General formula for carboxylic acids
• Drawing the structural formula for carboxylic acids
• Carboxylic acids as weak acids and
• Acid reactions with bases, metals, and carbonates
• Oxidation reactions from alcohols to carboxylic acids
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GCSE Physics: Forces and Fleming's Left Hand Rule
This presentation covers OCR Gateway Physics 9-1 P4.2.1 Forces, Current and Fleming’s Left Hand Rule.
This presentation includes:
Interacting Magnetic Field Lines
Increasing Magnitude of the force on a current carrying conductor
Applying Fleming’s Left Hand Rule
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OCR A level Physics: Gravitational Fields
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
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GCSE Physics: Sensing Circuits
This presentation covers OCR Gateway Physics 9-1 P3.2.7 Sensing Circuits
Potential difference in series and parallel circuits
Lamps in series and parallel
Gravitational potential and potential difference
LDR and Thermistor in potential divider circuits
Using LDRs to control security lights
Using thermistors to control heating/cooling circuits
Exam questions with worked solutions
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A Level Chemistry: Directing Group for Benzene
OCR A level Chemistry: 25.4 Directing Group
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
Naming positions on the aromatic ring
Activating groups and deactivating groups
2-and-4-directing and 3-directing groups
ortho-and-para directing and meta directing groups
Two-step synthesis routes for benzene using directing groups.
Nitration of benzene
Halogenation of benzene
Friedel-Crafts Alkylation of benzene
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OCR AS level Physics: Motion
OCR AS level Physics: Forces and Motion is a part of the Module 3: Forces and Motion.
All presentations come with worked examples, solutions and homeworks.
These are fully updated PowerPoints will all exercises with full worked solutions.
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OCR A level Chemistry: Organic Synthesis
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
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OCR AS level Physics: Foundations of Physics
OCR AS level Physics presentations for module 2: Foundations of Physics.
All presentations come with worked examples, solutions and homeworks.
This covers topics from SI units to vector analyis with sine and cosine rules.
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OCR A level Physics: Electric Fields
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
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OCR A level Chemistry: Chromatography and Spectroscopy
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
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GCSE Chemistry: Polymers
This PowerPoint presentation with worked examples and student questions covers:
• State what is meant by mono- and poly-.
• Describe polymerisation and the effects of cross-links in polymers.
• Determine a polymer’s repeat units from a monomer’s structural formula.
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GCSE Physics: Springs and Energy
This presentation covers OCR Gateway Physics 9-1 P2.3.2
• Spring Energy Equation
• Rearranging equation with two methods
• Problems and worked solutions
• Exam style question and answer
• Analysing force-extension graphs
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OCR Applied Science: 4.3 Isomers
This PowerPoint presentation with worked examples and student activities covers: Topic 4.3 of Module 1: Science Fundamentals of the OCR Applied Science Spec.
• Stating definitions and comparing structural isomers and stereoisomers.
• Condensed structural formula
• Lines of symmetry for structural isomers
• Cis- and Trans isomers
• Optical isomers as non-superimposable mirror images.
• Wedge and Dash Notation
• Identifying chiral centres (asymmetric carbons)
• Le Bel-van’t Hoff rule
• Determining the maximum number of isomers.
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OCR AS Chemistry: Organohalogen Compounds
OCR AS Chemistry: 15.2 Organohalogen Compounds and the Environment
This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
Definitions for CFC (Chlorofluorocarbons) and HCFC (Hydachlorofluorocarbons)
Creation of ozone
Depletion of ozone with CFCs
Reaction steps including initiations and propagation
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A level Chemistry: Condensation Polymers
OCR A level Chemistry: 27.3 Condensation Polymers
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
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
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GCSE Physics: Imaging with Electromagnetic Waves
This presentation covers OCR Gateway Physics 9-1 P5.2.3 Imaging with Electromagnetic waves. Includes student activities and full worked answers.
Careers: Medical Physicist
X-rays
CT scans
Gamma imaging
Thermogram
Magnetic Resonance Imaging
Precautions for using ionising radiation