App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 714 · 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.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) big touch targets (d) tiny tap areas
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 12 px
   Body text: 18 px
   Hint: 16 px
   Footer: 23 px
3. 3.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 21 px
   Label: 27 px
   Title: 19 px
   Caption: 22 px
   Menu: 11 px (a) Footer (b) Title (c) Menu (d) Label
7. 7.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) icons with no labels
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) strong colour contrast (d) tiny tap areas
9. 9.Which of these makes the app harder to use? (a) text that can grow (b) colour as the only clue (c) captions on videos (d) big touch targets
10. 10.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
11. 11.♿ 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
12. 12.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) fast-flashing lights
13. 13.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
14. 14.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) fast-flashing lights (d) tiny tap areas
15. 15.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) labels on every icon (d) text that can grow
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
18. 18.Which of these makes the app harder to use? (a) sudden loud sounds (b) captions on videos (c) text that can grow (d) big touch targets
19. 19.Which of these helps everyone use the app? (a) text that can grow (b) sudden loud sounds (c) fast-flashing lights (d) colour as the only clue
20. 20.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) colour as the only clue (d) sudden loud sounds
21. 21.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
22. 22.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
23. 23.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
24. 24.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) colour as the only clue
26. 26.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) labels on every icon (d) sudden loud sounds
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Body text: 15 px
    Label: 14 px
29. 29.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Hint: 23 px
    Title: 17 px
32. 32.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) tiny tap areas (d) colour as the only clue
34. 34.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Label: 12 px
    Title: 19 px (a) Footer (b) Label (c) Title
36. 36.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
37. 37.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
38. 38.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
39. 39.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Label: 16 px
    Footer: 13 px
    Title: 12 px
    Menu: 16 px

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