App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 183 · 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 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 18 px
   Title: 17 px
   Caption: 23 px
   Menu: 24 px
   Hint: 17 px
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.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 19 px
   Menu: 22 px
   Body text: 16 px
   Caption: 19 px
   Footer: 21 px
7. 7.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 28 px
   Title: 17 px
   Label: 25 px
   Footer: 17 px
   Body text: 14 px (a) Body text (b) Label (c) Menu (d) Title
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
10. 10.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
11. 11.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) captions on videos (d) text that can grow
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Menu: 26 px
    Label: 19 px (a) Title (b) Menu (c) Label
14. 14.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) sudden loud sounds (d) captions on videos
16. 16.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Hint: 20 px
    Caption: 11 px (a) Hint (b) Body text (c) Caption
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Footer: 13 px
    Label: 19 px
19. 19.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) icons with no labels
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Title: 10 px
    Menu: 19 px (a) Title (b) Menu (c) Caption
21. 21.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) labels on every icon
22. 22.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Title: 9 px
    Body text: 26 px (a) Body text (b) Title (c) Menu
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Hint: 20 px
    Body text: 18 px
25. 25.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) big touch targets (d) captions on videos
27. 27.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) text that can grow (d) icons with no labels
28. 28.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) tiny tap areas (d) text that can grow
29. 29.Which of these makes the app harder to use? (a) labels on every icon (b) icons with no labels (c) strong colour contrast (d) captions on videos
30. 30.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
31. 31.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) captions on videos
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.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Footer: 21 px
    Body text: 28 px (a) Body text (b) Title (c) Footer
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Title: 28 px
    Body text: 10 px
    Menu: 26 px (a) Body text (b) Hint (c) Menu (d) Title
36. 36.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) colour as the only clue (d) strong colour contrast
37. 37.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (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?
    Title: 21 px
    Caption: 23 px
    Label: 23 px
    Hint: 14 px
39. 39.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
40. 40.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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