App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 529 · 40 questions

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.

1. 1.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 19 px
   Label: 9 px
   Caption: 28 px
   Hint: 28 px (a) Body text (b) Hint (c) Caption (d) Label
2. 2.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
3. 3.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) sudden loud sounds (d) big touch targets
4. 4.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) labels on every icon
5. 5.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
6. 6.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
7. 7.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) sudden loud sounds
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 12 px
   Hint: 20 px
   Title: 21 px (a) Body text (b) Hint (c) Title
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 15 px
   Caption: 12 px
   Title: 21 px
   Body text: 21 px
   Hint: 13 px
10. 10.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
12. 12.Which of these makes the app harder to use? (a) labels on every icon (b) colour as the only clue (c) captions on videos (d) big touch targets
13. 13.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) labels on every icon (d) big touch targets
14. 14.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Hint: 14 px
    Body text: 17 px
    Footer: 11 px
    Caption: 24 px
16. 16.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
17. 17.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Label: 14 px
    Footer: 22 px
    Caption: 20 px
19. 19.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) big touch targets
21. 21.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
22. 22.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) labels on every icon (d) big touch targets
23. 23.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
24. 24.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Menu: 13 px
    Footer: 10 px
    Body text: 15 px
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Title: 24 px
    Label: 20 px
    Caption: 18 px
    Hint: 14 px (a) Label (b) Body text (c) Title (d) Hint
28. 28.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) sudden loud sounds (d) text that can grow
29. 29.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
31. 31.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Title: 10 px
    Hint: 19 px
    Caption: 18 px (a) Hint (b) Caption (c) Title (d) Label
33. 33.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Caption: 12 px
    Footer: 21 px (a) Title (b) Footer (c) Caption
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Title: 27 px
    Body text: 18 px (a) Body text (b) Title (c) Hint
36. 36.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Label: 23 px
    Body text: 24 px
    Hint: 25 px
    Title: 9 px (a) Label (b) Body text (c) Title (d) Menu
38. 38.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
39. 39.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True

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