App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 261 · 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.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
2. 2.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 17 px
   Body text: 16 px
   Title: 14 px (a) Title (b) Body text (c) Hint
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 15 px
   Title: 11 px
   Menu: 13 px
   Label: 20 px
   Footer: 12 px
5. 5.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) strong colour contrast
7. 7.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
8. 8.Which of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) tiny tap areas (d) fast-flashing lights
9. 9.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
10. 10.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) tiny tap areas (d) sudden loud sounds
11. 11.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) captions on videos (d) tiny tap areas
12. 12.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) big touch targets (d) tiny tap areas
14. 14.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
15. 15.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
16. 16.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
17. 17.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) labels on every icon (d) captions on videos
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Menu: 14 px
    Label: 15 px
    Title: 16 px
    Caption: 22 px
20. 20.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) text that can grow (d) sudden loud sounds
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Hint: 25 px
    Footer: 23 px
    Menu: 13 px
    Body text: 17 px (a) Menu (b) Hint (c) Title (d) Footer
22. 22.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Caption: 26 px
    Menu: 18 px
    Hint: 13 px
    Title: 21 px (a) Menu (b) Caption (c) Label (d) Hint
24. 24.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
26. 26.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Menu: 27 px
    Footer: 14 px
    Body text: 26 px (a) Footer (b) Menu (c) Body text (d) Title
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Menu: 27 px
    Caption: 10 px
    Footer: 25 px (a) Menu (b) Caption (c) Title (d) Footer
29. 29.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Label: 27 px
    Body text: 26 px (a) Body text (b) Title (c) Label
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Label: 11 px
    Body text: 21 px
32. 32.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Label: 21 px
    Hint: 19 px
    Body text: 26 px
    Menu: 20 px (a) Title (b) Body text (c) Hint (d) Label
34. 34.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) labels on every icon (d) captions on videos
35. 35.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) text that can grow (d) strong colour contrast
37. 37.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) text that can grow (d) labels on every icon
38. 38.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) sudden loud sounds
40. 40.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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