App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 48 · 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?
   Menu: 24 px
   Footer: 17 px
   Body text: 10 px
   Label: 16 px (a) Body text (b) Label (c) Footer (d) Menu
2. 2.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) tiny tap areas (d) big touch targets
3. 3.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) colour as the only clue (d) captions on videos
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 14 px
   Label: 17 px
   Footer: 20 px (a) Title (b) Footer (c) Label
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
6. 6.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 19 px
   Caption: 13 px
   Menu: 27 px
   Label: 21 px (a) Caption (b) Title (c) Label (d) Menu
8. 8.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) icons with no labels
10. 10.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) sudden loud sounds (d) labels on every icon
12. 12.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) text that can grow (d) sudden loud sounds
13. 13.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Menu: 10 px
    Hint: 20 px
    Label: 24 px
    Footer: 11 px
15. 15.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
16. 16.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
17. 17.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) only experts (d) nobody
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Footer: 19 px
    Caption: 14 px
    Hint: 19 px
    Label: 23 px
20. 20.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
21. 21.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
22. 22.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
23. 23.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Label: 21 px
    Hint: 17 px
    Caption: 10 px
    Footer: 25 px (a) Hint (b) Title (c) Label (d) Caption
26. 26.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
28. 28.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Title: 21 px
    Caption: 11 px (a) Title (b) Footer (c) Caption
30. 30.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
31. 31.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Footer: 17 px
    Menu: 18 px
    Label: 13 px (a) Label (b) Footer (c) Caption (d) Menu
34. 34.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
35. 35.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
37. 37.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Label: 11 px
    Footer: 20 px
    Caption: 10 px
    Title: 19 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Caption: 13 px
    Label: 22 px
    Title: 23 px
    Body text: 14 px
40. 40.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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