GCSE Physics (Triple) WJEC
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109 topics in 18 modules
☑️ Electric Circuits 8 topics
- Symbols of Components
- Series and Parallel Circuits
- Voltmeters and Ammeters
- How Current Changes with Voltage for a Component
- Relationship between Current, Voltage and Resistance
- Total Resistance
- Power
- Design and Use of Circuits to Explore the Variation of Resistance
☑️ Generating Electricity 7 topics
- The Advantages and Disadvantages of Renewable Energy Technologies
- The Advantages and Disadvantages of Non-renewable Energy Technologies
- Fuel Based Power Stations
- Snakey Diagrams
- The National Grid
- Step-up and Step-down Transofmrers in Transmission of Electricity
- Efficiency, Reliability, Carbon Footprint and Output in Different Types of Power Stations
☑️ Making Use of Energy 6 topics
- Conduction
- Convection
- Radiation
- Density = Mass / Volume
- Restricting Energy Loss from Houses
- Cost Effectiveness and Efficiency of Diffeernt Methods of Reducing Energy Losses from Homes
☑️ Domestic Electricity 6 topics
- The Kilowatt (kW) and the Kilowatt Hour (kWh) as Units of Energy
- The Cost of Electricity
- Alternating Current (ac) and Direct Current (dc)
- Fuses, Miniature Circuit Breakers and Residual Current Circuit Breakers
- The Ring Main, Live, Neutral and Earth Wires
- The Cost Effectiveness of Introducing Domestic Solar and Wind Energy Equipment
☑️ Features of Waves 8 topics
- Transverse and Longitudinal Waves
- Description of a Wave
- Reflection and Refraction
- Radiation
- Ultraviolet, X-ray and Gamma Ray
- The Electromagnetic Spectrum
- Wavelength, Frequency, Speed and Amplitude
- Communications using Satellites in Geosynchronous/Geostationary Orbit
☑️ The Total Internal Reflection of Waves 4 topics
- The Conditions for Total Internal Reflection of Light
- Optical Fibres
- Advantages and Disadvantages of Optical Fibres for Long Distance Communication
- The Use of Optical Fibres for Remote Imaging
☑️ Seismic Waves 5 topics
- Properties of Seismic P Waves, S Waves and Surface Waves
- P Waves - Longitudinal, S Waves - Transverse
- Simplified Seismic Records
- The Path of P and S Waves Through the Earth
- The S Wave Shadow Zone
☑️ Kinetic Theory 6 topics
- Pressure
- Behaviour of a Fixed Quantity of Gas under Conditions of Varying Pressure, Volume and Temperature
- Temperatures in Kelvin and pV / T = constant
- Molecular Motion and Collisions
- Relating the Heat Transfer to Changes of Temperature and State Respectively
- Explanation of Changes in Temperature and State of Substance
☑️ Electromagnetism 7 topics
- The Magnetic Field Patterns of Bar Magnets, Straight Wires and Solenoids
- F = BIl
- d.c. Motor
- Inducing a Current by Changes in Magnetic Fields and the Movement of Wires
- Electromagnetic Induction
- The Direction of the Induced Current in a Generator
- Output of a 100% Efficient Transformer Depending upon the Number of Turns in the Coils
☑️ Distance, Speed and Acceleration 4 topics
- Motion
- Speed-time and Distance-time Graphs
- Velocity-time Graphs (Distance Travelled)
- The Principles of Forces and Motion to the Safe Stopping of Vehicles
☑️ Newton's Laws 6 topics
- The Concept of Inertia
- Newton's First Law of Motion
- Newton's Second Law of Motion
- Distinction between Mass and Weight of an Object
- Forces and their Effects
- Newton's Third Law of Motion
☑️ Work and Energy 7 topics
- Transferring Energy
- Work = Force x Distance
- Object can Possess Energy because of its Motion, Position and Deformation
- Kinetic Energy and Changes in Gravitational Potential Energy Equations
- Relationship between Force and Extension for a Spring and other Simple Systems
- Work Done
- Improving Energy Efficiency of Vehicles
☑️ Further Motion Concepts 6 topics
- Momentum of a Body
- Newton's Second Law of Motion in the form force = change in momentum / time
- Relating The Law of Conservation of Momentum to Newton's Third Law of Motion
- Modelling Motion of Objects using various Equations
- The Principle of Moments
- Examples in which Forces cause Rotation
☑️ Stars and Planets 6 topics
- Main Features of our Solar System
- The Features of the Observable Universe and Appropriate Units of Distance
- The Life Cycle of Stars
- Stability of Stars
- The Origin of the Solar System
- The Hertzsprung-Russell (H-R) Diagram
☑️ The Universe 4 topics
- Atomic Absorption Spectra
- Cosmological Red Shift
- The Big Bang Model of the Origin of the Universe related to Cosmological Red Shift
- Cosmic Microwave Background Radiation
☑️ Types of Radiation 9 topics
- Nucleon, Proton Numbers, Isotope
- Radioactive Emissions
- Nuclear Power Stations Waste Radioactivity
- Background Radiation
- Random Nature of Radioactive Decay
- The Differences between Alpha, Beta and Gamma Radiation
- Alpha Radiation as a Helium Nucleus, Beta Radiation as a High Energy Nucleon and Gamma Radiation as Electromagnetic
- Producing and Balancing Nuclear Equations for Radioactive Decay
- Natural and Artificial Sources of Background Radiation
☑️ Half-Life 4 topics
- Random Nature of Radioactive Decay
- Plotting/Sketching Decay Curves for Radioactive Materials
- Simple Calculations involving the Activity and Half-life of Radioactive Materials
- The FDifferent Uses of Radioactive Materials
☑️ Nuclear Decay and Nuclear Energy 6 topics
- Fissile Nuclei
- The Roles of the Moderator and Control Rods in a Nuclear Fission Reactor
- The Radioactive Nature of Fission Products with a Large Range of Half-Lifes
- High Energy Collisions between Light Nuclei
- Producing and Balancing Nuclear Equations for Nuclear Fission and Fusion
- The Problems of Containment in Fission and Fusion Reactors
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GCSE Physics (Triple) WJEC Revision Content
Take a look at the written content available for this course. Practice-question availability may vary.
GCSE Physics (Triple) WJEC - Electric Circuits - Symbols of Components Content Preview
Electric Circuits
Symbols of Components
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Each component in an electric circuit has a unique symbol for identification. These symbols are standard across international physics curriculums.
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A straight line represents a wire connecting other components or parts of a circuit.
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A cell, or battery, is symbolised by two lines. A longer line represents the positive terminal whilst the shorter line represents the negative terminal.
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More than one cell connected together is depicted as several juxtaposed pairs of short and long lines.
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A lamp (bulb) is displayed as a circle with an 'X' inside. This represents the filament within the bulb.
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For resistors, a zig-zag or rectangular box is used. Resistors are components that resist the flow of electric current and reduce voltage.
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A capacitor, which stores electric charge, is represented by two parallel lines with a gap between them. One line is often curved.
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A fuse, a device designed to break a circuit if the current flowing through it is too high, is symbolised by a rectangular shape with a line going through it.
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Switches are indicated by a break in the line. If the switch is closed, the break is paired with an adjacent line.
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Diodes, which permit current flow in one direction only, are shown as a triangle facing a line.
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The symbol for a voltmeter, a device that measures voltage, is a circle with a "V" in the middle.
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The symbol for an ammeter, which measures current, is a circle with an "A".
Remember, whilst understanding these symbols is paramount, so too is understanding how these components function within a circuit. This will help you to efficiently design, analyse and predict outcomes in different electric circuit setups.
Question: What instrument, used to measure electric current, is represented in a circuit diagram by a circle with an 'A' in the middle?
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