App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 537 · 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 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
4. 4.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
5. 5.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) labels on every icon (d) text that can grow
6. 6.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
8. 8.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
9. 9.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) captions on videos
10. 10.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Label: 10 px
    Title: 16 px
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
13. 13.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
14. 14.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
15. 15.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
16. 16.♿ A screen has 10 icon buttons. Only 6 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. How many texts on this screen are too small?
    Footer: 21 px
    Title: 19 px
    Body text: 10 px
    Hint: 12 px
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Menu: 24 px
    Hint: 25 px (a) Label (b) Menu (c) Hint
19. 19.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
20. 20.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) fast-flashing lights (d) icons with no labels
21. 21.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) captions on videos
22. 22.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Hint: 13 px
    Body text: 19 px
    Caption: 27 px (a) Caption (b) Title (c) Hint (d) Body text
24. 24.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
26. 26.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Body text: 16 px
    Title: 22 px
    Menu: 21 px
    Footer: 19 px (a) Title (b) Menu (c) Body text (d) Hint
28. 28.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
29. 29.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Body text: 16 px
    Caption: 27 px
    Label: 21 px
    Hint: 10 px (a) Title (b) Hint (c) Caption (d) Body text
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Hint: 11 px
    Caption: 17 px (a) Title (b) Caption (c) Hint
32. 32.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
33. 33.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) colour as the only clue (d) tiny tap areas
34. 34.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) sudden loud sounds
35. 35.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Footer: 22 px
    Hint: 14 px
37. 37.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
38. 38.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) tiny tap areas (d) big touch targets
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) fast-flashing lights
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Body text: 24 px
    Title: 23 px
    Caption: 11 px
    Label: 16 px

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