App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 778 · 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 2 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 21 px
   Body text: 16 px
   Menu: 27 px
   Footer: 10 px
   Label: 21 px (a) Menu (b) Body text (c) Footer (d) Title
4. 4.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 18 px
   Label: 9 px
   Body text: 16 px (a) Body text (b) Label (c) Footer
6. 6.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) strong colour contrast
7. 7.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 13 px
   Caption: 24 px
   Footer: 10 px
9. 9.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) colour as the only clue
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Menu: 28 px
    Label: 20 px (a) Label (b) Menu (c) Hint
12. 12.Which of these makes the app harder to use? (a) captions on videos (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: big touch targets? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Body text: 16 px
    Hint: 23 px
    Title: 22 px
    Menu: 17 px
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
16. 16.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
17. 17.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Title: 15 px
    Caption: 20 px
    Body text: 13 px
    Footer: 22 px
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Label: 23 px
    Caption: 10 px
    Body text: 22 px (a) Label (b) Body text (c) Footer (d) Caption
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Menu: 11 px
    Hint: 11 px
    Title: 20 px
    Label: 10 px
21. 21.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Title: 15 px
    Body text: 15 px
    Caption: 19 px
    Menu: 12 px
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Caption: 12 px
    Body text: 20 px
25. 25.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
26. 26.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) strong colour contrast
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Title: 28 px
    Footer: 25 px (a) Body text (b) Title (c) Footer
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 11 px
    Body text: 23 px
    Footer: 26 px
    Menu: 17 px (a) Hint (b) Footer (c) Body text (d) Menu
30. 30.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
31. 31.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
32. 32.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Caption: 20 px
    Menu: 10 px
    Label: 10 px
34. 34.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
36. 36.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) labels on every icon
38. 38.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
39. 39.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Hint: 19 px
    Menu: 21 px

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