OCR AS level Physics: Couples and Torques is a part of the Module 3: Forces and Motion Presentation come with worked examples, solutions and homeworks.

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

This PowerPoint presentation with worked examples and student questions covers: • Properties of transition metals gases • Comparing transition metals with alkali metals • Everyday applications of transition metals • Transition metals as catalysts

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

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

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

OCR AS Chemistry: Formulae for Organic Compounds This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: molecular formula empirical formula general formula displayed formula structural formula skeletal formula

OCR AS Chemistry: 11.5 Introduction to Reaction Mechanisms This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Covalent bonds Homolytic fission and heterolytic reactions Curly arrows in reaction mechanisms Identifying addition, substitution, and elimination reactions.

OCR AS Chemistry: 13.2 Stereoisomerism This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: E/Z isomerism Conditions for trans- and cis- isomerism Cahn-Ingold-Prelog rules and priority ordering

OCR A level Physics: 18.7 Gravitational Potential Energy 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: Radial and uniformed field Definition of gravitational potential energy Deriving escape velocity Force-Distance graphs for gravitational fields

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

This presentation covers OCR Gateway Physics 9-1 P6.1.1 Atoms and Isotopes All presentations come with student activities and worked solutions. Structure of atom Properties of subatomic particles Atomic Number Mass Number Nuclear Notation Calculating the number of neutrons

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

OCR AS Chemistry: 17.2 Infrared Spectroscopy This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Absorb infrared radiation increasing vibrations What determines the magnitude of vibration Fingerprint region Identifying peaks

OCR A level Chemistry: 28.3 Further Synthetic Routes This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided. This lesson covers: Functional groups Reactions of benzenes Reactions of phenols Common reactions between different functional groups Reaction conditions and reagents

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

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.

OCR A level Physics: 19.4 Energy Levels in Atoms 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: 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

OCR A level Physics: 19.5 Spectra 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: The electromagnetic spectrum and wavelengths Definition of spectroscopy Electrons and energy levels Continuous spectra Emission spectra from gases Absorption spectra from gases

OCR A level Physics: 20.4 The Big-bang 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: 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