App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 49 · 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.♿ 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
2. 2.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) labels on every icon (d) sudden loud sounds
3. 3.🔍 Which is the odd one out? (a) sudden loud sounds (b) strong colour contrast (c) colour as the only clue (d) icons with no labels
4. 4.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.♿ A screen has 12 icon buttons. Only 3 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?
   Menu: 20 px
   Body text: 21 px
   Hint: 14 px
   Label: 11 px
   Footer: 15 px
7. 7.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
8. 8.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
9. 9.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
10. 10.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
12. 12.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
13. 13.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
14. 14.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
15. 15.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Footer: 22 px
    Body text: 23 px
    Hint: 13 px
    Title: 10 px
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
18. 18.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) tiny tap areas
19. 19.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
20. 20.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
21. 21.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
22. 22.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
23. 23.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) labels on every icon (d) sudden loud sounds
24. 24.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
25. 25.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
26. 26.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Caption: 17 px
    Title: 14 px
    Menu: 11 px
    Body text: 12 px
28. 28.Which of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) tiny tap areas (d) fast-flashing lights
29. 29.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) labels on every icon
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
31. 31.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) big touch targets (d) icons with no labels
32. 32.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
33. 33.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) sudden loud sounds (d) icons with no labels
34. 34.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Menu: 17 px
    Caption: 13 px
    Title: 25 px (a) Body text (b) Menu (c) Caption (d) Title
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Label: 17 px
    Body text: 10 px (a) Menu (b) Body text (c) Label
37. 37.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Label: 11 px
    Footer: 17 px

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