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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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OCR AS level Physics: Energy, Power, and Resistance
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.
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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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OCR A level Physics: Circular Motion
OCR A level Physics: Thermal Physics apart of the Module 5: Newtonian World and Astrophysics.
All presentations come with worked examples, solutions and homeworks.
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OCR A level Physics: Stars
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)
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GCSE Chemistry: Alcohols
This PowerPoint presentation with worked examples and student questions covers:
• Functional groups of alcohols, alkanes, and alkenes.
• Comparing incomplete and complete combustion of alcohols
• Mnemonic device for naming alcohols
• General formula for alcohols
• Drawing the structural formula for alcohols
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OCR A level Physics: Thermal Physics
OCR A level Physics: Thermal Physics apart of the Module 5: Newtonian World and Astrophysics.
All presentations come with worked examples, solutions and homeworks.
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GCSE Physics: Motors
This presentation covers OCR Gateway Physics 9-1 P4.2.2 Construction of a motor.
Magnetic Field Lines
Construction of a commutator
How to increase the speed of a motor.
Student activities with worked solutions.
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GCSE Chemistry: Electrolysis of Solutions
This PowerPoint presentation with worked examples and student questions covers:
• The position of metals and non-metals on the periodic table
• The ions metals and non-metals form
• The ion composition of solutions
• Electrodes, cations and anions
• The products of electrolysis of solutions
• Keyword descriptions and revision tips
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OCR AS level Physics: Charge and Current
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
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OCR A level Physics: Ideal Gas
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.
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A level Chemistry: Carboxylic Acid Derivatives
OCR A level Chemistry: 26.3 Carboxylic Acids
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
Naming acyl chlorides
Naming acid anhydrides
Naming esters
Esterification
Acid hydrolysis of esters
Alkali hydrolysis of esters
Producing acyl chlorides from carboxylic acids
Producing carboxylic acids from acyl chlorides
Producing esters from acyl chlorides and phenols
Primary, secondary, and tertiary molecules
Producing primary amides from acyl chlorides
Producing secondary amides with acyl chlorides
Producing esters and carboxylic acids wirh acid anhydride
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A level Chemistry: Amines
OCR A level Chemistry: 27.1 Amines
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
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
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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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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 OCR Physics P4 Magnetism
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
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GCSE OCR Chemistry C1 Particles
All resources for P1 GCSE OCR Chemistry Gateway 9-1 Triple and combined (Higher and Foundation) is covered in this material.
Includes:
Introducing Particles
Chemical and Physical Changes
Limitations of the Particle Model
Atomic Structure
Isotopes and Ions
Developing the Atomic Model
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GCSE Chemistry: Addition Polymers
This PowerPoint presentation with worked examples and student questions covers:
Prefixes mono- and poly-
Alkanes and alkenes functional groups
Saturated and unsaturated carbon bonds
Addition polymerisation reactions
Conditions needed for polymerisation reactions
How monomers form polymers
Repeat units and monomers
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GCSE Chemistry: Condensation Polymers
This PowerPoint presentation with worked examples and student questions covers:
Block notation for hydrocarbons
Amino acids functional groups
Amino acids forming proteins through condensation reactions
Forming polyesters through condensation reactions
Forming polyamides through condensation reactions
Comparing polyesters and polyamides
Conditions for condensation polymers
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OCR AS Chemistry: Chemical Reactions of Alkanes
OCR AS Chemistry: 12.2 Chemical Reactions of Alkanes
This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
Combustion reactions
Incomplete combustion reactions
Balancing equations
Using algebraic equations
Radical substitution reactions
Reaction mechanism for haloalkanes - Initiation, Propagation, and Termination
Monosubstituted (positional isomers) isomers