App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 113 · 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 helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) big touch targets (d) icons with no labels
2. 2.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
3. 3.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
4. 4.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 11 px
   Title: 11 px
   Menu: 18 px
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
7. 7.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 28 px
   Label: 21 px
   Hint: 10 px
   Caption: 28 px
   Title: 16 px (a) Label (b) Caption (c) Menu (d) Hint
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 13 px
   Label: 17 px
   Title: 27 px (a) Label (b) Title (c) Footer
10. 10.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) text that can grow (d) big touch targets
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Hint: 23 px
    Menu: 22 px
    Footer: 12 px
12. 12.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Label: 19 px
    Caption: 15 px
    Title: 18 px
14. 14.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Hint: 14 px
    Body text: 21 px
    Footer: 21 px
    Title: 17 px (a) Caption (b) Body text (c) Footer (d) Hint
17. 17.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
18. 18.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) icons with no labels (d) colour as the only clue
19. 19.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
20. 20.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
21. 21.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
22. 22.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
23. 23.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
24. 24.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
25. 25.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) captions on videos
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Title: 17 px
    Footer: 19 px
    Caption: 10 px (a) Footer (b) Title (c) Caption (d) Body text
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Hint: 23 px
    Footer: 20 px (a) Hint (b) Footer (c) Label
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Footer: 22 px
    Caption: 16 px
    Menu: 22 px
    Hint: 15 px
30. 30.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 19 px
    Menu: 19 px
    Body text: 20 px
32. 32.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) labels on every icon (d) captions on videos
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Title: 24 px
    Body text: 19 px
34. 34.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) captions on videos
36. 36.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
37. 37.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Title: 14 px
    Label: 16 px
39. 39.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?

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