App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 154 · 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) big touch targets (b) text that can grow (c) labels on every icon (d) icons with no labels
2. 2.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
3. 3.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 28 px
   Body text: 20 px
   Hint: 23 px
   Footer: 11 px
   Menu: 21 px (a) Footer (b) Label (c) Hint (d) Body text
5. 5.True or false: “labels on every icon” 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 battery (b) fast typists (c) the server (d) colour-blind users
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
8. 8.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) big touch targets
9. 9.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
10. 10.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) sudden loud sounds (d) text that can grow
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Footer: 23 px
    Body text: 19 px
    Title: 14 px
    Label: 15 px
12. 12.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) big touch targets (d) text that can grow
13. 13.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
15. 15.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) strong colour contrast (d) tiny tap areas
16. 16.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) captions on videos (d) sudden loud sounds
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Footer: 19 px
    Hint: 11 px
    Label: 24 px
    Menu: 22 px
18. 18.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) captions on videos
19. 19.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
20. 20.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) labels on every icon (d) captions on videos
21. 21.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) labels on every icon (d) captions on videos
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Footer: 23 px
    Hint: 10 px
    Title: 11 px
23. 23.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Caption: 12 px
    Body text: 20 px
    Hint: 24 px
    Menu: 17 px (a) Footer (b) Hint (c) Caption (d) Body text
25. 25.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Menu: 12 px
    Caption: 20 px
    Hint: 23 px
29. 29.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) labels on every icon (d) icons with no labels
30. 30.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) sudden loud sounds (d) colour as the only clue
31. 31.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 10 px
    Caption: 21 px
33. 33.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Body text: 19 px
    Footer: 26 px
    Hint: 14 px
    Menu: 20 px (a) Footer (b) Body text (c) Hint (d) Title
35. 35.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Menu: 10 px
    Title: 24 px (a) Menu (b) Hint (c) Title
37. 37.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) strong colour contrast
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Hint: 14 px
    Body text: 26 px (a) Hint (b) Title (c) Body text
39. 39.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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