App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 682 · 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. How many texts on this screen are too small?
   Body text: 11 px
   Caption: 13 px
   Menu: 12 px
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 19 px
   Title: 18 px
   Hint: 22 px
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 10 px
   Caption: 17 px
   Menu: 18 px
   Label: 21 px
   Title: 26 px (a) Label (b) Caption (c) Footer (d) Menu
4. 4.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) colour as the only clue (d) strong colour contrast
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) big touch targets (d) text that can grow
6. 6.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
7. 7.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) labels on every icon
9. 9.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
10. 10.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Caption: 21 px
    Title: 10 px (a) Title (b) Menu (c) Caption
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Title: 19 px
    Caption: 24 px
    Body text: 16 px
13. 13.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
14. 14.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
16. 16.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) text that can grow (d) colour as the only clue
17. 17.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) labels on every icon (d) tiny tap areas
18. 18.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) colour as the only clue (d) sudden loud sounds
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Title: 21 px
    Footer: 26 px
    Menu: 27 px
    Hint: 13 px (a) Title (b) Body text (c) Footer (d) Hint
20. 20.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
21. 21.Which of these makes the app harder to use? (a) icons with no labels (b) strong colour contrast (c) labels on every icon (d) captions on videos
22. 22.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Label: 25 px
    Title: 27 px (a) Body text (b) Label (c) Title
24. 24.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
25. 25.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) tiny tap areas (d) sudden loud sounds
26. 26.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Hint: 28 px
    Label: 17 px
    Footer: 16 px
    Body text: 23 px (a) Hint (b) Title (c) Label (d) Footer
28. 28.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) text that can grow (d) strong colour contrast
29. 29.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a long animation (d) a text label
31. 31.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
32. 32.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
33. 33.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Body text: 27 px
    Title: 22 px
    Label: 19 px (a) Body text (b) Label (c) Menu (d) Title
35. 35.♿ 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
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Title: 19 px
    Caption: 10 px
    Hint: 18 px
37. 37.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) captions on videos
38. 38.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) strong colour contrast (d) labels on every icon
40. 40.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True

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