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SPT:Electricity and Energy (Ee)

 
    • OverviewsOrientate yourself before diving into the topic, focussed on the teaching of those aged 14-16
      • Location of this topic in relation to other topics in SPT
      • Thread functions, and the links between them
      • Framework for planning to teach a physics topic
      • Evidence to consider in assaying this approach
      • Decisions you'll have to make as you plan to teach
      • Suggestions to bear in mind you as you plan to teach
      • Episode transitions within this topic
      • Particular issues arising and decisions to be made
      • Kitset of the main ideas in the topic
      • Pathway through the topic
      • Representing and Reasoning in this topic
      • An outline of the ideas in this topic
  • 01Setting up electrical loops(Ee01)

    • Physics Narrative (Ee01PN)
      • 01Modelling simple circuits
      • 02Calculating the current in whole circuit loops
      • 03Why 230 volt is a safe limit
      • 04Alternating current
      • 05Resistance
      • 06Using a constraining relationship
      • 07Potential difference
      • 08Energy: snapshot to snapshot
      • 09Adding resistance in a single loop
      • 10Providing more routes
      • 11Loops in parallel circuits
      • 12Fuses and earthing for safety
      • 13Physics is not putting numbers into memorised equations
      • 14The uses of algebra
      • 15Energy in series and parallel connections
      • 16Loop models of simple circuits
    • Teaching and learning issues (Ee01TL)
      • 01Things you'll need to decide on as you plan
      • 02Revisiting whole loops
      • 03Student starting points – charge flow
      • 04Student starting points – resistance
      • 05Student starting points – number of cells
      • 06Student starting points: summary
      • 07The electrical flow – all together now!
      • 08Bulbs marked as being 2 ampere
      • 09Loops and circuits
      • 10Making links between the real world and theory
      • 11Systematic use of teaching models
      • 12Talking your way through equations
      • 13Adding resistance
      • 14Series connections – potential difference shared
      • 15Parallel connections increase current
      • 16Thinking about actions to take
    • Teaching approaches (Ee01TA)
      • 01Think again! – about electric circuits
      • 02Questions about circuits with series connections
      • 03Questions about circuits with parallel connections
      • 04Current and potential difference ladders
      • 05Simple measurements and calculations
      • 06Present an interactive
      • 07Calculating for understanding
  • 02Electrical working in loops(Ee02)

    • Physics Narrative (Ee02PN)
      • 01A steady brightness
      • 02Electrical working
      • 03Pathways and compensation
      • 04Care with phrases
      • 05The magic of units
      • 06Electrical working in series circuits
      • 07A second look at the reasons for a 230 volt supply
      • 08Electrical working in parallel circuits
      • 09A solver's toolkit
      • 10What to do about all that algebra
      • 11Electricity at work
    • Teaching and learning issues (Ee02TL)
      • 01Things you'll need to decide on as you plan
      • 02Whole loops
      • 03Is it helpful to talk about electrical energy?
      • 04How come the bulb lights straight away?
      • 05Energy in stores; power in pathways
      • 06Adding a resistor in series… and shifting energy
      • 07Adding a resistor in parallel… shifting energy
      • 08Thinking about actions to take
    • Teaching approaches (Ee02TA)
      • 01Measurements to determine power: series connections
      • 02Measurements to determine power: parallel connections
      • 03A topic map
      • 04An earthing demonstration
      • 05Power and brightness
      • 06Talking and thinking circuit calculations
  • 03Designed devices switch pathways(Ee03)

    • Physics Narrative (Ee03PN)
      • 01Getting cars going
      • 02Devices in general
      • 03Things that glow
      • 04Making a difference
      • 05Things that warm
      • 06Things that speed up and slow down
      • 07Mechanisms of accelerating
      • 08Field lines used to predict forces
      • 09Transformers – changing back to where you started
      • 10Why so many transformers?
      • 11How the transformer works
      • 12Transformer input and output
      • 13Generators
      • 14Devices at work
    • Teaching and learning issues (Ee03TL)
      • 01Things you'll need to decide on as you plan
      • 02Power and devices
      • 03An electric car travelling at steady speed
      • 04An electric car building up speed (accelerating)
      • 05Power and pathways in electric motors
      • 06Changing one bulb won't make a difference
      • 07Magnetic fields
      • 08Force in a third direction
      • 09Explaining how a transformer works
      • 10Transformers – something for nothing?
      • 11Electrical generators – how do they work?
      • 12Electrical generators – what do they do?
      • 13Thinking about actions to take
    • Teaching approaches (Ee03TA)
      • 01Compensated pathways
      • 02The effectiveness of wind turbines
      • 03The power provided by a loaded solar cell
      • 04Transformer action
      • 05A very simple loudspeaker introduces the motor effect
      • 06Moving a wire through a magnetic field: lighting!
  • 04Efficiency and calculations(Ee04)

    • Physics Narrative (Ee04PN)
      • 01Energy stores accumulate working
      • 02Using a motor to lift
      • 03Warming an iron
      • 04Battery-accelerated car
      • 05Differing accumulation
      • 06Calculating energy efficiencies
      • 07Quantifying pathways
      • 08Cells revisited
      • 09Some efficiencies
      • 10Using efficiencies
    • Teaching and learning issues (Ee04TL)
      • 01Things you'll need to decide on as you plan
      • 02Questions that can be answered
      • 03How long will it take? – a matter of power
      • 04How efficient is that?
      • 05Why do car headlamps go dim when starting a car?
      • 06Thinking about actions to take
    • Teaching approaches (Ee04TA)
      • 01Shifting energy between gravitational and kinetic stores
      • 02Efficiency ladders
      • 03Calculate the efficiency of a motor in two ways
      • 04Internal resistance of fruit and vegetable cells
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