App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 143 · 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.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
2. 2.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 18 px
   Label: 18 px
   Menu: 12 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 10 px
   Hint: 13 px
   Title: 13 px
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) text that can grow (d) colour as the only clue
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
7. 7.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) fast-flashing lights (d) tiny tap areas
8. 8.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
9. 9.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Label: 17 px
    Caption: 12 px
    Hint: 22 px
    Footer: 20 px (a) Label (b) Caption (c) Hint (d) Body text
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
12. 12.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) tiny tap areas (d) sudden loud sounds
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Body text: 18 px
    Caption: 21 px
    Hint: 21 px (a) Label (b) Body text (c) Caption (d) Hint
14. 14.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) sudden loud sounds (d) text that can grow
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) colour as the only clue (d) text that can grow
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Menu: 19 px
    Hint: 17 px
    Caption: 11 px
    Body text: 21 px (a) Menu (b) Caption (c) Label (d) Hint
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
18. 18.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
19. 19.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
20. 20.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) text that can grow
21. 21.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) captions on videos (d) icons with no labels
23. 23.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) labels on every icon (d) captions on videos
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Hint: 24 px
    Footer: 14 px
    Caption: 13 px
25. 25.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Title: 25 px
    Body text: 20 px
    Caption: 10 px
    Label: 16 px (a) Title (b) Body text (c) Caption (d) Hint
27. 27.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) colour as the only clue (d) text that can grow
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Label: 16 px
    Menu: 22 px (a) Body text (b) Label (c) Menu
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Title: 25 px
    Footer: 9 px (a) Label (b) Footer (c) Title
30. 30.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
31. 31.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
35. 35.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Footer: 12 px
    Hint: 14 px
    Title: 18 px
    Body text: 14 px
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Body text: 16 px
    Hint: 12 px
    Menu: 12 px
    Caption: 24 px
38. 38.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Label: 18 px
    Hint: 23 px
    Caption: 20 px
40. 40.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) text that can grow (d) fast-flashing lights

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