App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 160 · 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.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 13 px
   Footer: 19 px
   Title: 22 px (a) Title (b) Hint (c) Footer
3. 3.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
4. 4.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) captions on videos
5. 5.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
6. 6.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Label: 10 px
   Menu: 23 px
   Hint: 15 px
8. 8.Which of these makes the app harder to use? (a) big touch targets (b) fast-flashing lights (c) captions on videos (d) strong colour contrast
9. 9.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
10. 10.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) icons with no labels (d) text that can grow
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Caption: 21 px
    Title: 21 px
    Menu: 11 px
    Body text: 22 px (a) Menu (b) Caption (c) Label (d) Title
12. 12.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Title: 12 px
    Body text: 18 px
    Hint: 22 px
14. 14.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
15. 15.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) sudden loud sounds (d) big touch targets
16. 16.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) captions on videos
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
18. 18.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
19. 19.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) captions on videos (d) text that can grow
20. 20.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) only experts (d) nobody
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Caption: 11 px
    Label: 27 px
    Body text: 16 px (a) Label (b) Title (c) Body text (d) Caption
22. 22.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
23. 23.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Footer: 23 px
    Title: 14 px
25. 25.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) fast-flashing lights (d) captions on videos
26. 26.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) labels on every icon (d) big touch targets
27. 27.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
28. 28.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) colour as the only clue (d) captions on videos
29. 29.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
30. 30.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
31. 31.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) tiny tap areas
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Footer: 10 px
    Menu: 23 px
    Caption: 20 px (a) Caption (b) Menu (c) Title (d) Footer
33. 33.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) text that can grow (d) labels on every icon
35. 35.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
36. 36.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
37. 37.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Menu: 10 px
    Footer: 18 px (a) Menu (b) Hint (c) Footer
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Caption: 22 px
    Footer: 21 px (a) Footer (b) Caption (c) Label
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Body text: 12 px
    Footer: 15 px
    Label: 10 px
    Caption: 13 px

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