App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 604 · 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: text that can grow? (a) helps everyone (b) makes it harder
2. 2.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
3. 3.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 21 px
   Caption: 13 px
   Menu: 25 px
   Body text: 22 px (a) Body text (b) Menu (c) Caption (d) Title
5. 5.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) strong colour contrast (d) text that can grow
6. 6.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 10 px
   Footer: 16 px
   Title: 21 px
   Menu: 18 px
   Hint: 15 px
8. 8.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
9. 9.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
10. 10.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Caption: 25 px
    Menu: 22 px
    Hint: 16 px
    Title: 9 px (a) Body text (b) Caption (c) Title (d) Menu
12. 12.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) strong colour contrast
13. 13.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) labels on every icon (d) icons with no labels
14. 14.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) big touch targets (d) labels on every icon
15. 15.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) sudden loud sounds (d) labels on every icon
16. 16.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
18. 18.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) big touch targets (d) labels on every icon
19. 19.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) tiny tap areas
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Caption: 20 px
    Body text: 26 px
    Title: 21 px (a) Caption (b) Body text (c) Title (d) Menu
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Title: 13 px
    Menu: 13 px
    Body text: 11 px
    Footer: 13 px
22. 22.♿ 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
23. 23.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) captions on videos (d) icons with no labels
25. 25.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Hint: 18 px
    Caption: 24 px
    Footer: 16 px
    Title: 10 px (a) Caption (b) Hint (c) Title (d) Body text
27. 27.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
28. 28.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) big touch targets (d) labels on every icon
29. 29.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) colour as the only clue (d) captions on videos
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Label: 9 px
    Footer: 26 px
    Menu: 19 px
    Hint: 18 px (a) Menu (b) Label (c) Body text (d) Footer
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Footer: 10 px
    Label: 23 px
    Body text: 12 px
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) icons with no labels
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Body text: 28 px
    Title: 18 px
    Caption: 9 px (a) Caption (b) Body text (c) Label (d) Title
35. 35.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) text that can grow (d) tiny tap areas
36. 36.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) sudden loud sounds (d) fast-flashing lights
37. 37.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
38. 38.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
40. 40.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True

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