App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 318 · 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?
   Body text: 18 px
   Hint: 13 px
   Menu: 21 px
   Label: 26 px
   Caption: 21 px (a) Label (b) Menu (c) Body text (d) Hint
2. 2.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 10 px
   Caption: 16 px
   Footer: 16 px
   Menu: 18 px
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 16 px
   Title: 28 px
   Caption: 19 px
   Hint: 10 px
   Body text: 23 px (a) Caption (b) Title (c) Menu (d) Hint
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 12 px
   Body text: 20 px
   Hint: 18 px
   Footer: 23 px
   Caption: 16 px (a) Body text (b) Title (c) Footer (d) Hint
6. 6.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 27 px
   Label: 23 px
   Body text: 10 px
   Footer: 20 px
   Hint: 16 px (a) Label (b) Footer (c) Body text (d) Caption
8. 8.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
9. 9.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
11. 11.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
12. 12.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
13. 13.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
15. 15.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
16. 16.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
17. 17.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Footer: 26 px
    Caption: 20 px
    Title: 24 px (a) Footer (b) Hint (c) Caption (d) Title
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Label: 11 px
    Footer: 24 px
    Body text: 24 px
20. 20.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
22. 22.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) colour as the only clue
23. 23.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) colour as the only clue (d) captions on videos
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) fast-flashing lights (d) strong colour contrast
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Title: 16 px
    Body text: 28 px (a) Body text (b) Title (c) Menu
27. 27.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
28. 28.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
29. 29.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Menu: 19 px
    Footer: 21 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Body text: 17 px
    Label: 11 px (a) Menu (b) Body text (c) Label
32. 32.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Title: 20 px
    Footer: 11 px
    Hint: 24 px
    Caption: 20 px
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Menu: 24 px
    Title: 17 px
    Body text: 15 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Body text: 19 px
    Title: 16 px
    Footer: 22 px (a) Footer (b) Menu (c) Body text (d) Title
37. 37.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Caption: 25 px
    Hint: 16 px
    Menu: 22 px
    Title: 21 px (a) Label (b) Menu (c) Hint (d) Caption
39. 39.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) text that can grow
40. 40.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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