App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 87 · 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) fast-flashing lights (b) icons with no labels (c) strong colour contrast (d) sudden loud sounds
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Caption: 19 px
   Body text: 23 px
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 13 px
   Title: 19 px
   Hint: 11 px
   Body text: 20 px
4. 4.♿ A screen has 12 icon buttons. Only 1 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. Which text on this screen is too small?
   Body text: 17 px
   Title: 18 px
   Hint: 10 px (a) Title (b) Hint (c) Body text
6. 6.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) captions on videos (d) text that can grow
7. 7.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 11 px
   Footer: 23 px
   Caption: 11 px
   Label: 20 px
   Body text: 18 px
9. 9.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
10. 10.🔍 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
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Hint: 16 px
    Menu: 19 px
    Title: 12 px
12. 12.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
13. 13.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Caption: 18 px
    Footer: 23 px
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) sudden loud sounds
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
17. 17.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Hint: 21 px
    Footer: 14 px (a) Body text (b) Footer (c) Hint
19. 19.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) sudden loud sounds (d) colour as the only clue
20. 20.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
21. 21.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) captions on videos
24. 24.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) sudden loud sounds (d) strong colour contrast
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Caption: 18 px
    Body text: 13 px
26. 26.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
27. 27.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Caption: 20 px
    Label: 17 px (a) Hint (b) Caption (c) Label
29. 29.Which of these makes the app harder to use? (a) fast-flashing lights (b) captions on videos (c) labels on every icon (d) text that can grow
30. 30.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
31. 31.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Menu: 23 px
    Caption: 18 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Footer: 23 px
    Caption: 11 px
    Body text: 19 px
34. 34.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
36. 36.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
37. 37.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
38. 38.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
39. 39.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) strong colour contrast (d) big touch targets
40. 40.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False

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