All resources for P8.2 Powering Earth GCSE OCR Physics Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. Types of different energy sources Renewable and non-renewable definitions Different uses of energy sources - transport, heating, and generating electricity Advantages and disadvantages of different energy sources Fossil fuels – oil, coal, and natural gas. Nuclear fuel – Uranium Biofuels – wood, biodiesel, and biogas. The sun - solar (PV) panels and solar heating panels Tides Waves Hydroelectricity Wind Geothermal How use of energy resources have changed over time. (Biofuels, Fossil Fuels, Nuclear, Renewable). How energy use has increased (increase population and development of technology) Explain patterns and trends in the use of energy resources. Fossil fuels are finite and will run out at current consumption levels. 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 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.

This bundle includes all PowerPoint lessons for Module 4 Organic Chemistry. All PowerPoints are whole lessons included with student activities, animated answers, homework questions with answers provided. Basic concepts of organic chemistry Organic Chemistry Nomenclature of organic compounds Representing the formulae of organic compounds Isomerism Introduction to reaction mechanisms Alkanes Properties of the alkanes Chemical reactions of the alkanes Alkenes Properties of the alkenes Stereoisomerism Reactions of alkenes Electrophilic addition in alkenes Polymerisation in alkenes Alcohols Properties of alcohols Reactions of alcohols Haloalkanes The chemistry of haloalkanes Organohalogen compounds in the environment Organic Synthesis Practical techniques in organic chemistry Synthetic routes Spectroscopy Mass spectrometry Infrared spectroscopy

OCR AS level Physics presentations for module 4: Quantum Physics. All presentations are full lesson PowerPoints with worked examples and homeworks with complete worked answers. The Photon Model Energy of a single photon Converting from electron-volts to Joules. Frequency of the electromagnetic spectrum Determining Plank’s constant with LEDs Threshold potential difference difference Photoelectric Effect Threshold frequency Producing photoelectrons Kinetic energy of photoelectrons Linking frequency and wavelength The electromagnetic spectrum, frequency and energy. Einstein’s Photoelectric Equation The photoelectric equation Work function and Kinetic Energy Determining work function from a graph Determining threshold frequency from a from graphical analysis. Determining Plank’s constant from graphical analysis. Wave Particle Duality deBroglie wavelength equation Diffraction of electrons and protons Comparing wavelengths of particles with different masses Kinetic energy and wavelength

Resources for C3.1 GCSE OCR Chemistry Gateway 9-1 Triple and Combined (Higher and Foundation) is covered in this material. Includes: Formulae of elements and molecules Formulae of ionic compounds Conservation of mass Chemical Equations Half equations and ionic equations The mole Mole calculations