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GCSE Chemistry: Isotopes and Ions
This PowerPoint presentation with worked examples and student questions covers:
• Definitions of elements, isotopes, and ions
• State mass number, atomic number, and chemical symbols
• Calculate the number of neutrons
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GCSE Chemistry: Filtration and Crystallisation
This PowerPoint presentation with worked examples and student questions covers:
Definitions for solution, solute, solvent, insoluble, soluble.
The technique of filtration
The technique of crystallisation
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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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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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OCR AS Physics: Diodes
OCR AS Physics A: Diodes is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework.
Polarity of diodes
Conventional current and diodes
Plotting I-V curves for diodes
Describing I-V curves for diodes
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OCR AS Physics: Combining Resistors
OCR AS Physics A: Combining Resistors is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework.
Rules for adding resistors in series and parallel
Applying adding resistors in series and parallel
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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.
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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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GCSE Physics: Everyday Motion
This presentation covers OCR Gateway Physics 9-1 P8.1.1 Everyday Motion. All presentations come with student activities and worked solutions.
Average speeds of walking, running, cycling, cars, trains, wind, sound, and light.
The speed equation
The acceleration equation
Explaining average speed camera
Explaining instantaneous speed camera
Estimating everyday accelerations
Calculating speed from rotation speed and circumference of wheels
Converting from miles per hour to meters per second
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GCSE Physics: EM waves - Uses and Dangers
This presentation cover the OCR Gateway Physics 9-1 P5.2.2 Uses and Dangers of EM radiation. PowerPoint includes student activities with full worked answers.
Recall that light is an electromagnetic wave
Give examples of some practical uses of electromagnetic waves in the radio, micro-wave, infra-red, visible, ultraviolet, X-ray and gamma-ray regions
Describe how ultra-violet waves, X-rays and gamma rays can have hazardous effects, notably on human bodily tissues.
Explain that electromagnetic waves transfer energy from source to absorber to include examples from a range of electromagnetic waves
Precautions for ultra-violet waves, X-rays and gamma rays
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GCSE Physics: Electrostatics
This presentation covers OCR Gateway Physics 9-1 P3.1.1 Electrostatics
Subatomic particles and electric charge
Transfer of electric charge
Attraction and repulsion from electric charge
Electric field lines
Interaction of electric field lines
Van der Graff generator
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GCSE Physics: Resistance and Ohm's Law
This presentations covers the OCR Gateway Physics 9-1 P3.2.3 Resistance
Combining resistors in series
Combining resistors in parallel
Modeling resistance, current, and potential difference with a rope.
The relationship between potential difference and current
The relationship between resistance and current
Ohm’s law
Rearranging equations
Worked examples and student questions
Explaining how increasing current increases resistance in a metal conductor and filament lamp.
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GCSE Physics: Magnets and Magnetic Fields
This presentation covers OCR Gateway Physics 9-1 P4.1.1 Magnets and Magnetic Fields.
Rules for repulsion and attraction
Magnetic Field Line Rules
Magnetic field density and magnetic force
Modeling the Earth as a Bar Magnet
Permanent and Induced Magnets
Magnetic Domains
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OCR AS level Physics: Current and Charge
OCR AS level Physics: Current and Charge is a part of the Module 4: Electrons, Waves, and Photons.
Presentation come with worked examples, solutions and homeworks.
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OCR AS level Physics: Derived Units
OCR AS level Physics: Derived Units is a part of the Module 2: Foundations of Physics
Full lesson PowerPoint with worked examples and homework with complete worked answers.
Indices Notation
Converting from Celsius to Kelvin.
Determining base units from derived units.
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OCR AS level Physics: Adding Vectors
OCR AS level Physics: Adding Vectors is a part of the Module 2: Foundations of Physics
Full lesson PowerPoint with worked examples and homework with complete worked answers.
Adding vectors in 1 D
Adding vectors in 2 D
Vector triangles
Using Pythagoras’ theorem to determine the magnitude
Using trigonometry to determine the direction
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OCR AS level Physics: Equations of Motion
OCR AS level Physics: Equations of Motion is a part of the Module 3: Forces and Motion
Presentation come with worked examples, solutions and homeworks.
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GCSE Chemistry: Atomic Structure
This PowerPoint presentation with worked examples and student questions covers:
• Scientific models as a concept
• Structure of the atom
• Relative mass and charge of subatomic particles
• Bond length of atoms and molecules
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GCSE Chemistry: Pure and Impure Substances
This PowerPoint presentation with worked examples and student questions covers:
Definitions of pure and impure substances
Definition of an alloy
Identification of purity with melting points
Plotting graphs and data analysis