App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 326 · 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.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
2. 2.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Footer: 27 px
   Hint: 10 px
   Body text: 17 px (a) Title (b) Footer (c) Body text (d) Hint
6. 6.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) labels on every icon (d) captions on videos
8. 8.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
9. 9.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
10. 10.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
11. 11.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Menu: 23 px
    Footer: 12 px
    Caption: 16 px
    Title: 24 px (a) Caption (b) Footer (c) Label (d) Menu
13. 13.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only experts (d) only the coder
14. 14.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
15. 15.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) icons with no labels (d) fast-flashing lights
16. 16.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
17. 17.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Hint: 17 px
    Caption: 24 px
    Label: 18 px (a) Caption (b) Label (c) Title (d) Hint
19. 19.🔍 Which is the odd one out? (a) sudden loud sounds (b) strong colour contrast (c) big touch targets (d) labels on every icon
20. 20.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Title: 18 px
    Menu: 13 px (a) Menu (b) Hint (c) Title
22. 22.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) text that can grow (d) labels on every icon
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) fast-flashing lights
24. 24.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
25. 25.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) fast-flashing lights (d) tiny tap areas
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Hint: 13 px
    Title: 27 px
    Footer: 22 px (a) Footer (b) Title (c) Hint (d) Body text
29. 29.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Menu: 25 px
    Body text: 16 px
    Title: 17 px (a) Body text (b) Title (c) Caption (d) Menu
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Footer: 25 px
    Body text: 22 px
    Caption: 18 px
    Label: 17 px (a) Footer (b) Body text (c) Hint (d) Caption
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Menu: 11 px
    Caption: 24 px
33. 33.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
35. 35.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) text that can grow
36. 36.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
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. Which text on this screen is too small?
    Label: 24 px
    Footer: 9 px
    Body text: 27 px
    Menu: 24 px
    Hint: 24 px (a) Menu (b) Body text (c) Footer (d) Label
39. 39.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) text that can grow (d) labels on every icon
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Body text: 21 px
    Label: 13 px
    Menu: 18 px (a) Menu (b) Label (c) Footer (d) Body text

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