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  • how to help users replicate what they have done
  • how to help users compare results
  • how is it possible to track last major events?
  • Conveying voltage information:
    • put a description in the PDOM
    • somehow add description to the alert: use a similar 3-point description as lightbulb
      • "small / big / very big" "negative" "flux / voltage / ?"
      • "voltage big positive" "big positive volts" ?
      • "small positive change" > "small change"
      • add a description in the PDOM to help with cueing of text alert
        • voltmeter described as "measures voltage changes in circuit"
        • voltmeter text alert "small positive change" (initially) > "small change"
  • AT reads focus when released
  • Tab moves focus and AT will announce label of next item. (be wary of possible confusion)
  • put the coil orientation in the scene summary.
  • (question) Idea: Last peak reading on voltmeter: x negative (x positive)

PDOM Example

Faraday's Law (h2, Scene Summary)

Faraday's Law‬ is an interactive sim. It changes as you play with itthe movable bar magnet.

At the centre of the play area (is a 4 loop coil / are two coilsa 2 loop and a 4 loop coil) connected to a light bulb circuit. There is a also moveable bar magnet.

In the circuit are a:

  • 4 loop coil
  • 2 loop coil (if attached)
  • light bulb
  • voltmeter (if attached)

The coil is sideways, with /If voltmeter attached/ A voltmeter is also attached to the circuit.

The (coil is / two coils are) sideways, (with / both with) openings on the left and right.

/ If field lines visible - One coil

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/ Magnetic field is (strong / moderate / weak) at the coil.

/ If field lines visible - Two coils with different field strengths / Magnetic field is (strong / moderate / weak)  at the 2 loop coil,

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 (strong / moderate / weak) magnetic field at the 4 loop coil.

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Strong

Moderate

Weak

(question) merge circuit and field lines description to a "snap shot" summary.

(question) Idea: Last peak reading on voltmeter: x negative (x positive)

/ If field lines visible - Two coils, same field strengths / Magnetic field is (strong / moderate / weak) at both coils.

Grab the magnet to play.

Additional There are additional controls that change what is connected to the circuit, flip the bar magnet, and reset the sim. If needed, check out keyboard shortcuts under Sim Resources.

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