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App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 3 · 40 questions
TalentJR

Developer's tip (Design for everyone): Our rule: text is at least 16 px; every icon has a text label for screen readers. Add captions to videos; never use colour as the only clue. Big touch targets and strong contrast help everyone.

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  1. 1.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
  2. 2.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) labels on every icon
  3. 3.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
  4. 4.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
  5. 5.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
  6. 6.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) icons with no labels (d) text that can grow
  7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Caption: 18 px
    Footer: 25 px
    Title: 12 px
    (a) Footer (b) Body text (c) Title (d) Caption
  8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Title: 11 px
    Label: 11 px
  9. 9.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
  10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 24 px
    Menu: 24 px
    Caption: 11 px
    Footer: 23 px
  11. 11.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) fast-flashing lights (d) text that can grow
  12. 12.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
  13. 13.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
  14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 13 px
    Title: 10 px
    Footer: 19 px
  15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Label: 17 px
    Footer: 22 px
    Hint: 15 px
  16. 16.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) captions on videos (d) colour as the only clue
  17. 17.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
  18. 18.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
  19. 19.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
  20. 20.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) labels on every icon
  21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Caption: 15 px
    Menu: 18 px
    Title: 12 px
    Label: 17 px
  22. 22.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) sudden loud sounds
  23. 23.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
  24. 24.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
  25. 25.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
  26. 26.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) labels on every icon (d) captions on videos
  27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Footer: 10 px
    Title: 28 px
    Menu: 20 px
    (a) Label (b) Footer (c) Title (d) Menu
  28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Label: 13 px
    Menu: 24 px
    Title: 15 px
    Hint: 11 px
  29. 29.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) tiny tap areas
  30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Title: 19 px
    Body text: 18 px
    Menu: 13 px
    Caption: 14 px
  31. 31.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
  32. 32.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
  33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Caption: 17 px
    Title: 27 px
    Footer: 26 px
    Hint: 18 px
    (a) Title (b) Caption (c) Body text (d) Footer
  34. 34.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
  35. 35.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
  36. 36.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
  37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Body text: 10 px
    Footer: 24 px
    Label: 17 px
  38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Body text: 17 px
    Title: 15 px
    Hint: 16 px
  39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Hint: 20 px
    Title: 10 px
  40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Hint: 22 px
    Body text: 16 px
    (a) Footer (b) Body text (c) Hint

Answer key

  1. 6
  2. colour as the only clue
  3. True
  4. 7
  5. helps everyone
  6. icons with no labels
  7. Title
  8. 3
  9. 5
  10. 2
  11. fast-flashing lights
  12. False
  13. 4
  14. 2
  15. 2
  16. colour as the only clue
  17. reads the screen aloud
  18. makes it harder
  19. 4
  20. labels on every icon
  21. 2
  22. strong colour contrast
  23. so anyone can follow
  24. 8
  25. colour-blind users
  26. tiny tap areas
  27. Footer
  28. 3
  29. tiny tap areas
  30. 2
  31. helps everyone
  32. True
  33. Body text
  34. text that can grow
  35. helps everyone
  36. False
  37. 1
  38. 2
  39. 2
  40. Footer

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