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OCR AS level Physics: Laws of Motion
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.
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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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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.
A level Chemistry: Chromatography and Functional Group Analysis
OCR A level Chemistry: 29.1 Chromatography and Functional Group Analysis
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
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.
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OCR A level Physics: Oscillations and Simple Harmonic Motion
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: Hertzsprung-Russell Diagram
OCR A level Physics: 19.3 Hertzsprung-Russell Diagram
Module 5 Newtonian World and Astrophysics
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
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.
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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 AS level Physics: Electrical Circuits
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.
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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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
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.
GCSE Chemistry: Neutralisation Reactions
This PowerPoint presentation with worked examples and student questions covers:
• Word equations for neutralisation reactions
• Describing how ions form salts
• Describing how water is formed
• Predicting the names of salts formed
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
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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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
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: Materials
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.
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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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OCR AS level Physics: Waves 1
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.
GCSE Chemistry: The pH scale
This PowerPoint presentation with worked examples and student questions covers:
• pH 0 - 14 scale with household examples
• Definitions for acids, bases and alkali substances
• Universal indicator and pH probes
• Using equalities and inequalities