App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 64 · 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) captions on videos (b) big touch targets (c) text that can grow (d) icons with no labels
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 21 px
   Body text: 12 px
   Hint: 17 px
   Footer: 17 px
   Menu: 21 px (a) Label (b) Body text (c) Hint (d) Footer
5. 5.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) big touch targets (d) colour as the only clue
7. 7.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
8. 8.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 13 px
   Label: 11 px
   Title: 15 px
   Footer: 18 px
10. 10.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Body text: 13 px
    Caption: 12 px
    Menu: 13 px
    Hint: 20 px
12. 12.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
13. 13.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) strong colour contrast (d) fast-flashing lights
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Caption: 24 px
    Menu: 17 px
    Hint: 10 px (a) Body text (b) Menu (c) Hint (d) Caption
15. 15.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) icons with no labels (d) big touch targets
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Body text: 26 px
    Menu: 13 px (a) Menu (b) Caption (c) Body text
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 13 px
    Title: 10 px
    Caption: 20 px
    Body text: 17 px
18. 18.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
19. 19.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
21. 21.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Title: 18 px
    Footer: 10 px (a) Title (b) Footer (c) Label
23. 23.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) captions on videos (d) strong colour contrast
24. 24.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
25. 25.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
26. 26.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Body text: 28 px
    Label: 16 px
    Footer: 20 px
    Hint: 26 px (a) Title (b) Body text (c) Label (d) Footer
28. 28.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
29. 29.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) tiny tap areas (d) sudden loud sounds
30. 30.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Title: 16 px
    Footer: 28 px
    Label: 13 px (a) Menu (b) Footer (c) Title (d) Label
32. 32.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
33. 33.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) labels on every icon (d) tiny tap areas
34. 34.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Label: 14 px
    Title: 14 px
36. 36.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) text that can grow
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Caption: 20 px
    Hint: 12 px
    Label: 25 px (a) Caption (b) Hint (c) Label (d) Title
38. 38.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) colour as the only clue (d) fast-flashing lights
39. 39.Which of these makes the app harder to use? (a) sudden loud sounds (b) captions on videos (c) strong colour contrast (d) labels on every icon
40. 40.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon

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