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OCR A level Chemistry: Aromatic Compounds
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
Molecular, empirical, skeletal formula for benzene.
The Kekulé model for benzene
Evidence against the Kekule model
The delocalised model for benzene
Nomenclature for benzene rings and aromatic (arene) compounds
Naming benzene containing compounds
Drawing benzene containing compounds
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
Naming phenols
Distinguishing between phenols and alcohols
Distinguishing between phenols and alkenes
Distinguishing between phenols and carboxylic acids
Phenol as a weak acid
Electrophilic reactions with phenols
Comparing and explaining the reactivity of phenols and benzene
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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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: Amino acids, Amides and Chirality
OCR A level Chemistry: 27.2 Amino acids, Amides and Chirality
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
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
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A level Chemistry: Interpreting Proton NMR Spectra
OCR A level Chemistry: 29.5 Interpreting Proton NMR Spectra
This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.
This lesson covers:
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
The spin-spin splitting pattern (n + 1)
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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.
Bundle
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OCR A level Physics: Capacitance
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
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OCR A Level Physics: Gravitational Potential
OCR A level Physics: 18.6 Gravitational Potential
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:
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: Graphs of Current and Potential Difference (I-V)
This presentation covers OCR Gateway Physics 9-1 P3.2.4 Graphs of potential difference (p.d.) and current.
Linear circuit element
Non-linear circuit element
Diodes and Light emitting diode (LED)
Current against potential difference graphs
How the gradient of a current against potential difference graph relates to resistance
Experimental set-up for determining circuit elements
How temperature affects resistance in lamps and metal conductors (wires)
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GCSE Physics: Atmospheric Pressure
This presentation covers OCR Gateway Physics 9-1 P1.3.3 Atmospheric Pressure
This presentation includes:
Balanced and unbalanced forces
Resultant force
Changing atmospheric pressure
Exam style question with mark scheme
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GCSE Physics: Acceleration
This presentation covers OCR Gateway Physics 9-1 P1.2.3.
Content covered:
Definition for acceleration
Worked solutions
Students problems with answers
Exam style question with mark scheme
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GCSE Physics: Velocity-time graphs
This presentation covers OCR Gateway Physics 9-1 P2.1.5
Analysing velocity-time graphs
Calculating the gradient
Acceleration from velocity-time graphs
Distance travelled from velocity-time graphs
Worked problems and solutions
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GCSE Physics: The National Grid
This presentation covers OCR Gateway Physics 9-1 P8.2.3 The National Grid
This PowerPoint is a whole lessons included with student activities and animated answers.
Structure of the National Grid
Step-up and Step-down transformers
How transformers increase the efficiency of the National Grid
Number of turns and potential difference
Current and potential difference in primary and secondary coils
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GCSE Physics: Mains Electricity
This presentation covers OCR Gateway Physics 9-1 P8.2.4 Mains Electricity
This PowerPoint is a whole lessons included with student activities and animated answers.
Domestic Electrical Supply being 230 V, AC at 50 Hz.
Direct potential difference and alternating potential difference.
Reasons for insulation on wires.
Potential Difference between different conductors.
Function of the earth conductor.
Double insulation and no earth wire.
Reasons the live wire is dangerous.
Reasons why live to earth is dangerous.
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GCSE Chemistry: Exothermic and Endothermic Reactions
This PowerPoint presentation with worked examples and student questions covers:
• Definition for exothermic and endothermic
• Examples of exothermic and endothermic reactions
• Practical procedure for NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)
• Determining if experimental evidence show a exothermic or endothermic reaction
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GCSE Chemistry: Redox Reactions
This PowerPoint presentation with worked examples and student questions covers:
• Oxidation and reduction reactions for oxygen
• Identification of oxidation and reduction agents
• Oxidation and reduction reactions for electrons
• Half equations to determine oxidation and reduction
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GCSE Chemistry: Hydrogen Ions and pH
This PowerPoint presentation with worked examples and student questions covers:
• Concentration of fruit squash
• Comparing strong and weak acids
• pH and hydrogen ion concentration
• Titration curves
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GCSE Chemistry: Alkanes
This PowerPoint presentation with worked examples and student questions covers:
• Definition of hydrocarbons
• Carbon and hydrogen saturation
• Mnemonic device for naming alkanes
• Comparing complete and incomplete combustion
• Balancing complete combustion reactions
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GCSE Chemistry: Crude Oil and Cracking
This PowerPoint presentation with worked examples and student questions covers:
• Definition of hydrocarbons
• Fossil fuels being finite and non-renewable
• Inter-molecular forces and boiling points
• Fractional distillation of crude oil
• Uses of crude oil
• Cracking equations and reasons to crack hydrocarbons
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OCR AS Physics: Potential Dividers
OCR AS Physics A: Potential Divider is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework.
Application of the ratio of resistances
Application of the potential divider circuit
Deriving the potential divider equation
Rearranging the potential divider equation
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GCSE Physics: Light and Colour
This presentation covers OCR Gateway Physics 9-1 P5.3.3 Light and Colour
Includes student activities and full worked answers.
Names of colours for the visible spectrum
Coloured filters
Coloured objects acting as a coloured filters
White light and refracting prism
Refraction and wavelength
Specular reflection
Diffuse scattering
Scattering - Why the sky is blue and milk is white.