App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 221 · 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?
   Hint: 12 px
   Title: 19 px
   Menu: 21 px
   Body text: 24 px
   Caption: 15 px
2. 2.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
3. 3.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) icons with no labels (d) captions on videos
4. 4.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) sudden loud sounds (d) strong colour contrast
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) fast-flashing lights (d) icons with no labels
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
8. 8.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
9. 9.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) colour as the only clue (d) icons with no labels
11. 11.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
12. 12.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
13. 13.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
14. 14.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) strong colour contrast (d) fast-flashing lights
15. 15.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
16. 16.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) captions on videos (d) strong colour contrast
17. 17.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
18. 18.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
19. 19.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Footer: 21 px
    Hint: 18 px
    Caption: 20 px
    Title: 28 px (a) Menu (b) Hint (c) Footer (d) Caption
21. 21.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) fast-flashing lights (d) text that can grow
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Hint: 18 px
    Body text: 24 px (a) Body text (b) Hint (c) Footer
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Menu: 13 px
    Caption: 16 px
    Footer: 15 px
    Label: 18 px
24. 24.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
25. 25.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
26. 26.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
27. 27.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Body text: 18 px
    Hint: 15 px
    Title: 18 px
    Footer: 17 px
29. 29.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) text that can grow
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Footer: 27 px
    Label: 27 px (a) Label (b) Footer (c) Menu
31. 31.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Hint: 9 px
    Caption: 25 px (a) Body text (b) Caption (c) Hint
33. 33.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
35. 35.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
36. 36.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 15 px
    Hint: 24 px
    Menu: 16 px
    Title: 18 px
    Caption: 24 px
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Footer: 15 px
    Title: 15 px
39. 39.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) fast-flashing lights (d) labels on every icon

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