App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 233 · 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 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
2. 2.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) sudden loud sounds (d) icons with no labels
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 12 px
   Label: 15 px
   Footer: 10 px
4. 4.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
5. 5.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) icons with no labels (d) big touch targets
6. 6.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) fast-flashing lights (d) text that can grow
7. 7.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) colour as the only clue (d) big touch targets
8. 8.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) text that can grow
9. 9.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) fast-flashing lights (d) tiny tap areas
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Menu: 11 px
    Title: 15 px
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) big touch targets (d) colour as the only clue
12. 12.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) tiny tap areas (d) icons with no labels
13. 13.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) labels on every icon (d) tiny tap areas
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Hint: 12 px
    Caption: 24 px
15. 15.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) icons with no labels (d) colour as the only clue
16. 16.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
17. 17.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) colour as the only clue (d) big touch targets
18. 18.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
19. 19.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) strong colour contrast
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Label: 28 px
    Hint: 26 px
    Footer: 20 px (a) Label (b) Hint (c) Title (d) Footer
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Caption: 12 px
    Label: 27 px
    Body text: 16 px
    Footer: 23 px (a) Caption (b) Hint (c) Label (d) Body text
23. 23.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Hint: 18 px
    Caption: 13 px
26. 26.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
27. 27.True or false: “labels on every icon” 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?
    Caption: 9 px
    Footer: 23 px
    Label: 17 px (a) Footer (b) Caption (c) Label
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.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) big touch targets (d) sudden loud sounds
31. 31.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
32. 32.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
33. 33.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Body text: 16 px
    Caption: 16 px (a) Body text (b) Caption (c) Title
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Title: 24 px
    Caption: 17 px
    Label: 27 px (a) Menu (b) Caption (c) Label (d) Title
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Label: 12 px
    Title: 21 px
    Caption: 20 px
    Footer: 23 px (a) Body text (b) Caption (c) Label (d) Title
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Body text: 22 px
    Caption: 17 px
    Hint: 21 px
38. 38.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Title: 17 px
    Label: 15 px
    Footer: 14 px
    Hint: 10 px
40. 40.True or false: “captions on videos” helps everyone use the app. (a) False (b) True

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