App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 600 · 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.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
2. 2.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) captions on videos (d) text that can grow
4. 4.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) colour as the only clue (d) sudden loud sounds
6. 6.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) labels on every icon (d) fast-flashing lights
7. 7.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 9 px
   Body text: 18 px
   Title: 16 px
   Label: 17 px
   Footer: 24 px (a) Label (b) Title (c) Hint (d) Body text
9. 9.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Body text: 13 px
    Label: 13 px
    Caption: 10 px
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Title: 21 px
    Hint: 23 px
    Body text: 17 px
    Label: 15 px
12. 12.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
13. 13.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Footer: 21 px
    Label: 20 px
    Menu: 14 px
    Body text: 16 px
15. 15.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
16. 16.♿ A screen has 7 icon buttons. Only 4 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?
    Title: 21 px
    Menu: 22 px
    Body text: 12 px
    Hint: 14 px
18. 18.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
19. 19.♿ A screen has 6 icon buttons. Only 4 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) fast-flashing lights (b) sudden loud sounds (c) strong colour contrast (d) colour as the only clue
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Title: 21 px
    Body text: 21 px
    Label: 27 px (a) Body text (b) Title (c) Caption (d) Label
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Hint: 13 px
    Caption: 18 px
23. 23.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) labels on every icon
24. 24.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
25. 25.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) tiny tap areas (d) text that can grow
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Label: 19 px
    Title: 22 px
    Caption: 10 px (a) Title (b) Hint (c) Label (d) Caption
27. 27.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Body text: 20 px
    Footer: 25 px
    Hint: 9 px
    Caption: 22 px (a) Hint (b) Footer (c) Title (d) Body text
29. 29.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Body text: 19 px
    Title: 14 px
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Footer: 13 px
    Hint: 14 px
33. 33.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
35. 35.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
36. 36.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
37. 37.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) labels on every icon (d) captions on videos
38. 38.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) big touch targets (d) labels on every icon
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Label: 21 px
    Footer: 11 px
40. 40.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) fast-flashing lights

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