App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 194 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 12 px
   Label: 12 px
   Caption: 23 px
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 13 px
   Label: 24 px
   Body text: 20 px (a) Label (b) Hint (c) Body text
3. 3.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
4. 4.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
5. 5.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
7. 7.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
8. 8.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
9. 9.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
10. 10.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
11. 11.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
12. 12.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
13. 13.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) colour as the only clue (d) tiny tap areas
15. 15.♿ 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
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Hint: 24 px
    Body text: 19 px
    Label: 19 px (a) Hint (b) Label (c) Body text (d) Title
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 13 px
    Caption: 10 px
    Menu: 17 px
    Footer: 15 px
    Title: 16 px
18. 18.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Label: 18 px
    Title: 24 px
21. 21.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
22. 22.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Menu: 26 px
    Title: 17 px
    Body text: 11 px
    Caption: 22 px (a) Body text (b) Label (c) Menu (d) Title
24. 24.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
25. 25.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
26. 26.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
27. 27.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) sudden loud sounds (d) big touch targets
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) icons with no labels (d) text that can grow
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Footer: 18 px
    Hint: 16 px
30. 30.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) labels on every icon (d) captions on videos
32. 32.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Footer: 19 px
    Label: 11 px
    Body text: 16 px (a) Footer (b) Body text (c) Title (d) Label
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Menu: 17 px
    Hint: 11 px (a) Menu (b) Footer (c) Hint
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Body text: 17 px
    Hint: 21 px
    Footer: 22 px
    Label: 24 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.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) big touch targets (d) labels on every icon
38. 38.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Title: 13 px
    Caption: 21 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Menu: 18 px
    Footer: 21 px
    Label: 26 px
    Body text: 17 px (a) Hint (b) Footer (c) Label (d) Menu

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