App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 607 · 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.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
3. 3.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) captions on videos (d) text that can grow
4. 4.Which of these makes the app harder to use? (a) colour as the only clue (b) big touch targets (c) strong colour contrast (d) text that can grow
5. 5.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 22 px
   Label: 15 px
   Hint: 20 px
7. 7.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
8. 8.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) captions on videos (d) icons with no labels
10. 10.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
11. 11.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
12. 12.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) labels on every icon
13. 13.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
14. 14.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
16. 16.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
17. 17.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Hint: 9 px
    Caption: 23 px
    Label: 28 px
    Footer: 17 px (a) Label (b) Caption (c) Menu (d) Hint
20. 20.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
21. 21.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
22. 22.Which of these makes the app harder to use? (a) icons with no labels (b) big touch targets (c) labels on every icon (d) captions on videos
23. 23.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) sudden loud sounds (d) colour as the only clue
24. 24.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) sudden loud sounds
25. 25.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) text that can grow (d) colour as the only clue
26. 26.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) big touch targets (d) strong colour contrast
27. 27.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Title: 20 px
    Menu: 25 px
    Label: 9 px
    Hint: 24 px (a) Footer (b) Title (c) Menu (d) Label
29. 29.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) captions on videos (d) text that can grow
30. 30.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
31. 31.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Label: 10 px
    Title: 13 px
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Footer: 9 px
    Label: 26 px
    Body text: 26 px (a) Body text (b) Title (c) Label (d) Footer
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 15 px
    Title: 13 px
    Caption: 10 px
    Hint: 14 px
    Menu: 15 px
35. 35.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Hint: 23 px
    Footer: 21 px
37. 37.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Caption: 11 px
    Menu: 11 px
    Label: 17 px
    Body text: 24 px
39. 39.♿ A screen has 7 icon buttons. Only 6 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?
    Menu: 22 px
    Label: 24 px
    Footer: 11 px
    Body text: 13 px
    Hint: 22 px

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