App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 353 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Title: 23 px
   Label: 13 px
   Menu: 18 px
2. 2.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 20 px
   Hint: 22 px
   Footer: 11 px
   Body text: 16 px
   Menu: 14 px
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 11 px
   Label: 18 px
   Menu: 17 px
   Title: 25 px
   Caption: 18 px (a) Title (b) Menu (c) Label (d) Body text
5. 5.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) fast-flashing lights
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 21 px
   Footer: 14 px
   Label: 22 px
8. 8.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
9. 9.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Title: 22 px
    Hint: 18 px
    Label: 17 px
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Caption: 23 px
    Body text: 16 px
    Hint: 16 px (a) Caption (b) Body text (c) Menu (d) Hint
12. 12.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) colour as the only clue (d) labels on every icon
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Menu: 20 px
    Hint: 13 px
    Footer: 24 px
    Body text: 11 px
15. 15.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
16. 16.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
17. 17.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Caption: 16 px
    Hint: 11 px
    Footer: 23 px (a) Hint (b) Menu (c) Caption (d) Footer
19. 19.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) big touch targets
20. 20.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) tiny tap areas
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Menu: 27 px
    Body text: 16 px
    Title: 14 px (a) Title (b) Caption (c) Body text (d) Menu
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) big touch targets (d) text that can grow
23. 23.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) strong colour contrast (d) captions on videos
25. 25.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
26. 26.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) tiny tap areas (d) sudden loud sounds
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Title: 24 px
    Caption: 20 px
    Hint: 13 px
    Body text: 21 px (a) Label (b) Hint (c) Caption (d) Title
29. 29.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
30. 30.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
32. 32.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
34. 34.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
35. 35.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) captions on videos
36. 36.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
37. 37.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
38. 38.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) colour as the only clue (d) icons with no labels
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Body text: 16 px
    Title: 16 px
    Footer: 12 px
    Hint: 15 px
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Title: 14 px
    Label: 17 px

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