App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 707 · 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: “labels on every icon” makes the app harder to use. (a) True (b) False
2. 2.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 23 px
   Body text: 13 px
   Label: 26 px
   Title: 19 px (a) Caption (b) Title (c) Body text (d) Label
5. 5.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
6. 6.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
8. 8.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
10. 10.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) icons with no labels (d) labels on every icon
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) text that can grow
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Title: 11 px
    Caption: 16 px (a) Title (b) Caption (c) Footer
14. 14.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) sudden loud sounds
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Caption: 19 px
    Label: 11 px
    Hint: 10 px
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Label: 13 px
    Footer: 17 px
    Title: 23 px
    Hint: 24 px
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Hint: 16 px
    Label: 13 px
    Caption: 18 px
18. 18.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
19. 19.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
20. 20.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) captions on videos (d) text that can grow
22. 22.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) fast-flashing lights (d) captions on videos
23. 23.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
24. 24.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Label: 14 px
    Hint: 15 px
26. 26.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Menu: 13 px
    Footer: 23 px
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Footer: 20 px
    Body text: 20 px
30. 30.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
31. 31.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Title: 25 px
    Footer: 13 px
    Label: 25 px (a) Caption (b) Footer (c) Title (d) Label
33. 33.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
34. 34.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
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.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Label: 27 px
    Hint: 27 px (a) Hint (b) Label (c) Body text
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Menu: 17 px
    Footer: 12 px
39. 39.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
40. 40.True or false: “captions on videos” helps everyone use the app. (a) True (b) False

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