Switching to AQA from OCR Physics B (Gateway) If you’re thinking of switching to AQA from OCR GCSE Physics B (Gateway) for teaching from September 2016, this resource will provide a helpful comparison of the subject content and assessment for each awarding body. It directly compares the current OCR specification, with our new specification for GCSE Physics (8463) for 2016 onwards. The subject content is presented in a logical teaching order with teaching guidance and opportunities for skills development signposted throughout the specification. The subject content and required practicals for the GCSE Combined: Trilogy (8464) are also in GCSE Physics (8463). This gives you the flexibility to coteach or to move students between courses; physics only content is identified clearly. Comparison overview OCR The OCR specification is modular to fit the two exam papers. Extra content to form the full GCSE Physics course is integrated throughout the modules. AQA The AQA specification has broad themes, each with an introductory context and is intended to build a deep understanding of science. It is possible to take a variety of routes through the specification. Assessment New AQA specification Current OCR specification Two externally assessed written papers (1 hour 45 minutes). Two externally assessed written papers: Paper 1 assesses sections 6.2, 6.4, 6.6 and 6.7 Paper 1 (75 minutes) assesses modules P1, P2 and P3 New AQA specification Paper 2 assesses sections 6.1, 6.3 and 6.5 Current OCR specification Paper 2 (90 minutes) assesses modules P4, P5 and P6. Eight required practicals should be Controlled assessment(s) to internally carried out by students and may be assess practical skills. examined in the written papers to assess practical skills. Content New AQA specification Current OCR specification The content is organised into eight topics: Content is organised into six modules: 1. Energy for the home 1. Forces 2. Energy 2. Living for the future (energy resources) 3. Waves 3. Forces for transport 4. Electricity 4. Radiation for life 5. Magnetism and electromagnetism 5. Space for reflection 6. Particle model of matter 6. Electricity for gadgets 7. Atomic structure 8. Space physics (physics only) Practicals New AQA specification Current OCR specification The required practicals are clearly listed. We identify opportunities for skills development in the righthand column of the specification. These should encourage more Practical activities are suggested throughout the subject content. These are not explicitly linked to controlled assessment practice. practical work, which will motivate students and encourage the transfer of skills across the subject. Working scientifically New AQA specification Current OCR specification Specification reference: WS 1.1 to WS 4.6 Specification reference: 'Working scientifically' is the sum of all the activities that scientists do and appears throughout the specification and written papers. There are crossreferences to relevant activities in the content. The compulsory practicals are listed in 8.2 and integrated into the content specification. Questions based on practical activities will count for at least 15% of the overall marks. Unit content identifies opportunities for skills development throughout with references to WS, MS (Mathematical requirements) (7) and use of apparatus and techniques (8.1). Fundamental scientific processes Controlled assessment tasks. (Internal assessment) The specification has interpreted the principles of 'How science works' into a series of fundamental scientific principles. Candidates require an understanding of these fundamental principles and the way they underpin scientific explanations/content. These fundamental principles are developed throughout the specification, and assessed in all the assessed units. Controlled assessment contributes 25% of the total marks. Mathematical skills are listed in Appendix B. Appendix C lists physical quantities and units. Equations are embedded in the content. Appendix A lists Physics equations. 4.1 Forces 4.1.1 Forces and their interactions New AQA specification Current OCR specification Specification reference: 4.1.1.1 to 4.1.1.4 Specification reference: Vectors and equations of motion P5b Work and power P 3d. Both specifications cover scalar and vector quantities, gravity and weight. Contact and non-contact forces. Not specified in OCR specification Gravity, including centre of mass. Included solely in the context of work done and power. Resultant forces dealt with in some detail(mainly HT), including vector diagrams and calculations by scale drawings. Know how to calculate resultant force by vector calculation or scale diagram. 4.1.2 Work done and energy transfer New AQA specification Current OCR specification Specification reference: 4.1.2 Specification reference: Work and power P3d Both specifications cover work done and energy transfer. This is introduced here, and covered in further detail in changes in energy. 4.1.3 Forces and elasticity New AQA specification Current OCR specification Specification reference: N/A 4.1.3 Forces acting and resultant deformation. Calculations using spring constant (linear cases only), linear and non-linear relationships; work done. Required practical 1 - extension of a spring This section is not covered in the OCR specification. 4.1.4 Moments, levers and gears New AQA specification Current OCR specification Specification reference: 4.1.4 N/A Turning forces, calculations using M=Fa. Understanding of how levers and gears transmit rotational forces. This section is not covered in OCR specification. 4.1.5 Pressure and pressure differences in fluids New AQA specification Current OCR specification Specification reference: 4.1.5.1 to 4.1.5.2 Specification reference: Falling safely 3g Action and reaction 5d. The two specifications treat pressure differently. AQA develops details of pressure in a fluid, whereas OCR uses pressure to exemplify Newton's Third Law, and to use particle model to discuss pressure in gases, with specific reference to rocketry. Falling objects and terminal velocity are covered in a similar fashion. Surface pressure, pressure in a column of liquid, changes of pressure and buoyancy, atmospheric pressure. N/A N/A Use of particle model to explain relationship between temperature, volume and pressure. Use particle theory to explain how rockets work. 4.1.6 Forces and motion New AQA specification Current OCR specification Specification reference: 4.1.6.1 to 4.1.6.2 Specification reference: Speed P3a Changing speed P3b Forces and motion P3c Crumple zones P3f Projectile motion P5c. Speed and acceleration are developed in similar ways in both specifications, including drawing and interpreting graphical representations. Newton's First and Second Laws of motion are covered in both specifications (see below for differences) The laws of motion are then applied to driving in the context of stopping distances. Newton's First Law Implicit only in P3c Newton's Second Law including inertial mass F=ma is included, but not referred to as Newton's Second Law. N/A Projectile motion P5c 4.1.7 Momentum New AQA specification Current OCR specification Specification reference: 4.1.7.1 to 4.1.7.3 Specification reference: Crumple zones 3f Both specifications cover momentum, momentum calculations, change in momentum and applications in personal safety. Conservation of momentum is explicit, with reference to collisions. Conservation is implicit in a section on safety in car collisions and the application of crumple zones. Explanations using momentum for a variety of safety features in cars, cycling, Explanations of momentum with reference only to car safety. gymnastics and school playground surfaces. 4.2 Energy Energy is treated as a discrete topic in the new AQA specification, with references to and from linked topics. OCR embeds energy concepts in several content areas throughout the specification. 4.2.1 Energy changes in a system, and the ways energy is stored before and after such changes New AQA specification Current OCR specification Specification reference: 4.2.1.1 to 4.2.1.5 Specification reference: Heating houses 1a Work and power 3d Energy on the move 3e The energy of games and theme rides 3h. Kinetic energy, GPE and specific heat capacity are treated in similar ways in each specification. Work done and power are covered in both specifications. The required practical is an investigation of specific heat capacity. AQA develops energy stores and changes in a variety of instances: kinetic energy, elastic potential, GPE. Elastic potential not required. Each of these energy changes is embedded into other related topics. KE develops in motion, and progresses to sustainable energy usage and implications for transport policy. GPE set in the context of roller coasters. Work done in 4.1.2 is revisited and the N/A relationship between energy, work done and power is developed. 4.2.2 Conservation and dissipation of energy New AQA specification Current OCR specification Specification reference: 4.2.2.1 to 4.2.2.2 Specification reference Keeping homes warm: 1b Conservation of energy and efficiency calculations are covered in similar ways in both specifications. Conservation is discussed in all closed systems, with specific reference to effect of lubricants and insulation. Conservation and efficiency is only covered in the context of home insulation. Sankey diagrams not explicitly required. Efficiency calculations to include Sankey diagrams. 4.2.3 National and global energy resources New AQA specification Current OCR specification Specification reference: 4.2.3 Specification reference: Keeping homes warm P1b Collecting energy from the Sun P2a Global warming P2c Fuels for power P2d Energy on the move P3e. This is a discrete topic in the AQA specification, the coverage is more diffuse in the OCR specification. The underlying content and working scientifically ideas are treated in a similar way. Both specifications cover the main energy resources, how they are used and the difference between renewable and non-renewable resources. Both specifications cover ethical/environmental issues. Global warming inferred but not explicitly included. Global warming causes, impacts and human activity. 4.3 Waves Waves are treated as a discrete topic in AQA's new specification, with references to waves content in other areas of the specification. The OCR specification introduces waves in topics relevant to the broader theme. 4.3.1 Waves in air, fluids and solids New AQA specification Current OCR specification Specification reference: 4.3.1.1 to 4.3.1.5 Specification reference: A spectrum of waves P1c Light and lasers P1d Stable Earth P1h Ultrasound P4d Nature of waves P5f Refraction of waves P5g. Both specifications cover basic wave ideas, including transverse and longitudinal waves, properties of waves, compression and rarefaction, definitions of amplitude, frequency and wavelength - including the wave equation and calculating the period. Ultrasound and seismic waves are covered in similar depth. AQA required practical: Investigate the reflection of light by different types of surface and the refraction of light by different substances. The working of the human ear N/A Reflection of waves. TIR as a context for reflection. Interference Particle theory of light vs wave theory. Use of ripple tanks is covered. Suggested amongst other ways of looking at waves. 4.3.2 Electromagnetic waves New AQA specification Current OCR specification Specification reference: 4.3.2.1 to 4.3.2.6 Specification reference: Heating houses P1a, Keeping homes warm P1b A spectrum of waves P1c Cooking and communicating using waves P1e Data transmission P1f Stable Earth P1h Treatment P4g Satellite communication P5e Optics P5h. Both specifications cover electromagnetic spectrum, refraction and interaction of waves and matter, the uses of various e/m waves, optics and magnification. Radio waves production, transmission and reception. Radio and wireless communication is developed in terms of transmission and interaction with the atmosphere. Use and impact of high energy e/m waves (UV, X-ray and gamma) in context of risks to human health. Covered more broadly with reference to nuclear radiation. UV and skin damage is covered, mainly with reference to health implications and ozone depletion. Visible light, with emphasis on colour. Light is covered in relation to its uses as a means of communication, and in laser applications. Use of mobile phones and potential health implications. Difference between digital and analogue signals. 4.3.3 Black body radiation New AQA specification Current OCR specification Specification reference: 4.3.3.1 to 4.3.3.2 Specification reference: Heating houses P1a This is a new topic in the AQA specification. Emission and absorption of InfraRed 1a 4.4 Electricity 4.4.1 Current, potential difference and resistance New AQA specification Current OCR specification Specification reference: 4.4.1.1 to 4.4.1.4 Specification references: Safe electricals P4c Resisting P6a Sharing P6b Appendix E. Both specifications cover standard circuit diagram symbols, electrical charge, current, resistance, ohmic and non-ohmic components, potential difference, resistors, LDRs and thermistors. Required practicals in AQA specification: 4.4.1.3: Investigate, using circuit diagrams to set up a circuit, the factor(s) that affect the resistance of an electrical component. 4.4.1.4: Investigate, using circuit diagrams to construct circuits, the V-I characteristics of a filament lamp. A diode and a resistor at constant temperature. Relationship between current and charge is developed in some detail. N/A Diodes are included. N/A 4.4.2 Series and parallel circuits New AQA specification Current OCR specification Specification reference: 4.4.2 Specification reference: Sharing P6b Both specifications cover resistance in series and parallel circuits. Current and voltage in series and parallel circuits, including calculations of current, potential difference and resistance in series circuits. N/A Calculating total resistance in parallel circuits is not required. N/A Electronics is covered in some detail including potential dividers, logic circuits, transistors and logic gates, and truth tables. Resistance in series and parallel circuits is developed within this context. 4.4.3 Domestic uses and safety New AQA specification Current OCR specification Specification reference: 4.4.3.1 to 4.4.3.3 Specification references: Generating electricity 2b Safe electricals 4c. Both specifications cover: DC and AC current, mains electricity and functions of wiring in electrical appliances, plus safety, fuses and electrical insulation. 4.4.4 Energy transfers New AQA specification Current OCR specification Specification reference: 4.4.4.1 to 4.4.4.3 Specification reference: Safe electricals P4c Transforming P6g. Both specifications cover electrical power equations and the National Grid in similar depth. Electrical energy transfer, work done in N/A context of electricity, E=QV, power ratings in electrical appliances. 4.4.5 Static electricity New AQA specification Current OCR specification Specification reference: 4.4.5.1 to 4.4.5.2 Specification references: Sparks P4a Uses of electrostatics P4b. Both specifications cover basic ideas around static electricity and the transfer of electrons. OCR develops the topic in the context of safety and applications. AQA doesn't use a context. Static electricity, charged objects, attraction and repulsion as noncontact forces. N/A Electrical fields. N/A Dangers of static electricity, antistatic measures, dust precipitators, spray painting, defibrillators. 4.5 Magnetism and electromagnetism 4.5.1 Permanent and induced magnetism, magnetic forces and fields New AQA specification Current OCR specification Specification reference: 4.5.1.1 to 4.5.1.2 N/A 4.5.2 The motor effect New AQA specification Current OCR specification Specification reference: 4.5.2.1 to- 4.5.2.4 Specification reference: Motoring P6e Both specifications cover electromagnetism in similar ways, including effect of current flow in a straight wire and a solenoid. Flemings LHR used to describe the motor effect, including how rotation occurs in an electric motor. Calculating the force on the conductor using magnetic flux density is included (equation given in the exam). N/A Motor effect in loudspeakers and headphones. N/A 4.5.3 Induced potential, transformers and the National Grid New AQA specification Current OCR specification Specification reference: 4.5.3.1 to 4.5.3.4 Specification reference: Generating electricity P2b Generating P6f Transforming P6g. Both specifications include content on induced current flow, AC generators, transformer calculations, step-up and step-down transformers and their uses in transmission of electricity over distances. Students should be able to explain the application of the generator effect to produce ac in an alternator and dc in a dynamo. Refers to dynamo effect only Moving coil microphone function. N/A N/A Details of how electricity is generated in a conventional power station. Details of ac generator only 4.6 Particle model of matter 4.6.1 Changes of state and the particle model New AQA specification Current OCR specification Specification reference: 4.6.1.1 to 4.6.1.2 N/A Both specifications cover changes in state. AQA covers it in more detail. Required practical: 4.6.1.1: Investigate using appropriate apparatus, the densities of regular and irregular solid objects and liquids, making and recording appropriate measurements. Density and density calculations. N/A Conservation of mass in state change. 4.6.2 Internal energy and energy transfers New AQA specification Current OCR specification Specification reference: 4.6.2.1 to 4.6.2.3 Specification reference: Heating houses P1a Both specifications cover changes in temperature with respect to specific heat capacity and specific latent heat. Internal energy and implications for changes in temperature or state. Internal energy is not explicitly mentioned; the idea is developed implicitly in the content of latent heat. Interpretation of heating and cooling graphs including state changes is included. N/A 4.6.3 Particle model and pressure New AQA specification Current OCR specification Specification reference: 4.6.3.1 to 4.6.3.3 Specification reference: Heating houses P1a Action and reaction P5d. Both specifications cover particle model and pressure, relationship between temperature and pressure at constant volume; volume and pressure at constant temperature. pV = constant Energy transfer in a gas N/A 4.7 Atomic Structure 4.7.1 Atoms and isotopes New AQA specification Current OCR specification Specification reference: 4.7.1.1 to 4.7.1.3 N/A This is shared content in the new AQA Physics and Chemistry specifications. None of this content is in OCR Gateway Physics, although knowledge of basic atomic model and some of the terminology is assumed in several topics. Structure of an atom, mass number, atomic number, isotopes; the development of the model of the atom. N/A 4.7.2 Atoms and nuclear radiation New AQA specification Current OCR specification Specification reference: 4.7.2.1 to 4.7.2.4 Specification reference: Energy on the move P2e What is radioactivity? P4e Uses of radioisotopes P4f Treatment P4g Fission and fusion P4h. Both specifications cover: nuclear radiation, ionising and penetration through materials of alpha, beta and gamma radiation nuclear equations background radiation half-life uses of nuclear radiation nuclear fission and fusion. Use of the Becquerel as a unit of measurement of rate of decay. N/A Uses of radiation limited to medical uses. Uses to include medical, industrial, smoke detectors, radioactive dating. Radioactive contamination, irradiation vs contamination, safety precautions. Safety of handling radioactive material, and problems with radioactive waste. 4.8 Space physics New AQA specification Current OCR specification Specification reference: 4.8.1.1 to 4.8.2 Specification reference: Exploring our Solar System P2f Threats to Earth P2g The Big Bang P2h. Both specifications cover our solar system and its part in the Milky Way galaxy, life cycle of a star, orbital motion, red shift and evidence for the Big Bang model. Use of light-year as a measure of distance Manned and unmanned explorations of space/planets Historical models of the universe Copernicus and Galileo Asteroids and comets, origin, evidence of historical collisions and the threat of future collisions Dark matter/dark energy N/A