App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 733 · 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 of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) tiny tap areas (d) captions on videos
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) sudden loud sounds (d) colour as the only clue
3. 3.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
4. 4.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
5. 5.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) big touch targets (d) labels on every icon
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) captions on videos (d) icons with no labels
7. 7.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 18 px
   Title: 14 px
   Caption: 20 px
   Footer: 18 px
   Hint: 28 px (a) Footer (b) Title (c) Caption (d) Body text
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 9 px
   Menu: 27 px
   Body text: 16 px (a) Body text (b) Label (c) Menu
10. 10.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) big touch targets (d) colour as the only clue
11. 11.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
12. 12.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) text that can grow
13. 13.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
15. 15.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
16. 16.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) icons with no labels (d) text that can grow
17. 17.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
18. 18.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Hint: 11 px
    Title: 11 px
    Caption: 21 px
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) fast-flashing lights
21. 21.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
22. 22.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
24. 24.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
26. 26.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Hint: 21 px
    Label: 21 px
    Menu: 14 px
28. 28.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
29. 29.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
31. 31.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
32. 32.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Caption: 23 px
    Title: 15 px
    Hint: 22 px
    Body text: 10 px
34. 34.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) big touch targets
36. 36.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Label: 18 px
    Body text: 19 px
    Hint: 11 px
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Menu: 13 px
    Title: 15 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Footer: 14 px
    Title: 10 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Caption: 19 px
    Hint: 19 px (a) Hint (b) Label (c) Caption

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