App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 394 · 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) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) strong colour contrast
2. 2.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
4. 4.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
5. 5.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
7. 7.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 12 px
   Footer: 23 px
   Menu: 26 px
   Hint: 19 px
   Body text: 28 px (a) Menu (b) Footer (c) Caption (d) Hint
9. 9.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) big touch targets (d) tiny tap areas
10. 10.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
11. 11.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
12. 12.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Footer: 27 px
    Body text: 14 px
    Hint: 22 px (a) Body text (b) Label (c) Hint (d) Footer
14. 14.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
15. 15.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) icons with no labels (d) captions on videos
16. 16.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
17. 17.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) colour as the only clue (d) sudden loud sounds
18. 18.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
19. 19.Which of these makes the app harder to use? (a) tiny tap areas (b) text that can grow (c) captions on videos (d) strong colour contrast
20. 20.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 17 px
    Body text: 13 px
    Menu: 14 px
22. 22.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
23. 23.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) colour as the only clue (d) fast-flashing lights
25. 25.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
26. 26.♿ A screen has 10 icon buttons. Only 3 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. Which text on this screen is too small?
    Label: 16 px
    Menu: 23 px
    Title: 12 px (a) Title (b) Menu (c) Label
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Footer: 18 px
    Title: 21 px (a) Footer (b) Label (c) Title
29. 29.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Hint: 28 px
    Title: 25 px (a) Hint (b) Body text (c) Title
31. 31.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
32. 32.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) captions on videos (d) colour as the only clue
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Menu: 22 px
    Title: 13 px
    Footer: 20 px
    Body text: 27 px (a) Title (b) Label (c) Footer (d) Menu
34. 34.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Caption: 27 px
    Title: 22 px
    Footer: 22 px
    Label: 22 px (a) Title (b) Hint (c) Caption (d) Footer
36. 36.♿ A screen has 11 icon buttons. Only 2 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. Which text on this screen is too small?
    Hint: 10 px
    Body text: 20 px
    Title: 24 px
    Label: 22 px (a) Body text (b) Title (c) Hint (d) Label
38. 38.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
39. 39.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
40. 40.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder

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