App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 510 · 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 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
3. 3.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
4. 4.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
7. 7.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) tiny tap areas (d) text that can grow
8. 8.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
9. 9.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Hint: 21 px
    Body text: 16 px (a) Hint (b) Caption (c) Body text
11. 11.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
12. 12.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
13. 13.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Body text: 24 px
    Title: 18 px
    Caption: 16 px
15. 15.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
17. 17.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
18. 18.Which of these makes the app harder to use? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) big touch targets
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Body text: 13 px
    Footer: 10 px
20. 20.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) labels on every icon
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
23. 23.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Hint: 28 px
    Caption: 16 px (a) Caption (b) Hint (c) Menu
25. 25.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these makes the app harder to use? (a) big touch targets (b) icons with no labels (c) captions on videos (d) strong colour contrast
27. 27.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
28. 28.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
29. 29.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
30. 30.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
31. 31.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) sudden loud sounds (d) icons with no labels
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) labels on every icon
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Label: 10 px
    Body text: 17 px
    Footer: 19 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Label: 22 px
    Footer: 23 px
    Caption: 9 px (a) Footer (b) Body text (c) Caption (d) Label
35. 35.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Label: 26 px
    Title: 14 px
    Footer: 18 px (a) Hint (b) Label (c) Footer (d) Title
37. 37.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
38. 38.Which of these helps everyone use the app? (a) big touch targets (b) colour as the only clue (c) icons with no labels (d) tiny tap areas
39. 39.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
40. 40.Which of these makes the app harder to use? (a) captions on videos (b) fast-flashing lights (c) labels on every icon (d) big touch targets

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