App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 478 · 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.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) captions on videos
2. 2.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
5. 5.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) icons with no labels (d) captions on videos
7. 7.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) fast-flashing lights (d) colour as the only clue
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 27 px
   Hint: 19 px
   Menu: 16 px
   Footer: 16 px
   Label: 13 px (a) Caption (b) Hint (c) Label (d) Menu
9. 9.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) sudden loud sounds
11. 11.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these makes the app harder to use? (a) sudden loud sounds (b) big touch targets (c) text that can grow (d) strong colour contrast
13. 13.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Hint: 16 px
    Caption: 14 px
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Body text: 11 px
    Title: 17 px
    Hint: 23 px (a) Hint (b) Body text (c) Caption (d) Title
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Title: 12 px
    Hint: 24 px
17. 17.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) fast-flashing lights (d) captions on videos
18. 18.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) captions on videos (d) tiny tap areas
20. 20.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
21. 21.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) strong colour contrast
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Hint: 27 px
    Label: 18 px (a) Label (b) Body text (c) Hint
23. 23.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) colour as the only clue
24. 24.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
25. 25.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) colour as the only clue
26. 26.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
27. 27.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Menu: 23 px
    Label: 14 px (a) Label (b) Footer (c) Menu
29. 29.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
31. 31.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
32. 32.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
33. 33.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) captions on videos (d) colour as the only clue
34. 34.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
35. 35.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
37. 37.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Hint: 21 px
    Footer: 23 px
    Caption: 13 px
    Menu: 24 px
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) captions on videos (d) strong colour contrast
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Label: 23 px
    Footer: 26 px
    Title: 9 px (a) Hint (b) Footer (c) Label (d) Title

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