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| Event | Alert text |
|---|---|
Grab magnet: 1st and 2nd time | "Grabbed" + (magnet location) + ", W A S D keys move in 4 directions. Press Space to release." Note: See "Magnet Locations Used for Text Alerts" below |
| Grab magnet: 3rd time onward | "Grabbed" + (magnet location) + ". Press Space to release." |
Grab magnet: Any time after 2nd grab, and a resulting slide will pass through a coil with no coil collision. Fire this alert at most two times. * | "Grabbed" + (magnet location) + ", try 1 2 3 keys to slide different speeds left and right. Press , press Shift to stop slide. Press , press Space to release." |
| Brightness peaks and falls off | See "Bulb Brightness and Voltmeter Text Alerts" below. |
| Voltage peaks and falls off | See "Bulb Brightness and Voltmeter Text Alerts" below. |
| Release magnet | "Released" + (magnet location). *See "Magnet Locations Used for Text Alerts" below |
| Slide stop | "Sliding stopped." or "Stopped" |
| Bump Coil | "Bumped coil" |
| Bump Edge | "At edge of play area." |
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- Pressed tab.
- Focus moved to magnet
- Screen reader would announce button label ("Grab magnet").
- Press enter.
- Text alert: "Grabbed (location), W A S D keys move in 4 directions, press Space to release."
- 1 2 3, or cursor WASD or Cursor keys pressed
- Sonification sounds are heard
- Bump Coil ("Bumped coil") and Bump Edge ("At edge of play area") alerts fired if occurred.
- Changes to PDOM descriptions occur as interaction proceeds.
- Press space.
- Text alert: "Released (location)"
- Keyboard focus is on magnet button.
- If Tab is pressed
- Text alert: "Released (location)"
- Keyboard focus moves to next focusable item.
Third to Fifth time grabbing magnet (Slide prompt on grabtime on-wards (Shortened grab alert)
- Pressed tab.
- Focus moved to magnet
- Screen reader would announce button label ("Grab magnet") and associated aria-describedby text ("Select this to move the magnet").
- Text .
- Press enter.
- Text alert: "Grabbed (location), try 1 2 3 keys slide different speeds left and right. Press Space to release."
- 1 2 3WASD, Cursor, or cursor 123 keys pressed
- Sonification sounds are heard
- Bump Coil ("Bumped coil") and Bump Edge ("At edge of play area") alerts fired if occurred.
- Changes to PDOM descriptions occur as interaction proceeds.
- Press space.
- Text alert: "Released (location)"
- Keyboard focus is on magnet button.
- If Tab is pressed
- Text alert: "Released (location)"
- Keyboard focus moves to next focusable item.
Sixth time on-wards (Shortened grab alertAny time magnet is in a position where it can slide completely through the coil (Slide prompt fires at most 2 times)
- Pressed tab.
- Focus moved to magnet
- Screen reader would announce button label ("Grab magnet") and associated aria-describedby text ("Select this to move the magnet").
- Press enter.
- Text alert: "Grabbed (location). Press , try 1 2 3 keys to slide different speeds left and right, press Shift to stop slide, press Space to release."
- 1 2 3 , or cursor keys pressed
- Sonification sounds are heard
- Bump Coil ("Bumped coil") and Bump Edge ("At edge of play area") alerts fired if occurred.
- Changes to PDOM descriptions occur as interaction proceeds.
- Press shift
- Slide stop alert: "Sliding stopped."
- Press space.
- Text alert: "Released (Magnet Release Text Alertlocation)" according to the magnet location as depicted in diagram above.
- Keyboard focus is on magnet button.
- If Tab is pressed
- Text alert: "Released (Magnet Release Text Alertlocation)" according to the magnet location as depicted in diagram above.
- Keyboard focus moves to next focusable item.
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