App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 855 · 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?
   Body text: 13 px
   Label: 22 px
   Hint: 13 px
   Caption: 21 px
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 10 px
   Body text: 11 px
   Menu: 17 px
   Caption: 22 px
   Footer: 19 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 13 px
   Caption: 18 px
   Menu: 12 px
   Body text: 17 px
   Title: 20 px
5. 5.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) tiny tap areas
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Caption: 28 px
   Footer: 19 px (a) Menu (b) Caption (c) Footer
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 20 px
   Label: 10 px
   Title: 20 px
   Body text: 22 px (a) Title (b) Caption (c) Label (d) Body text
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) strong colour contrast (d) icons with no labels
9. 9.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) strong colour contrast (d) colour as the only clue
10. 10.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
11. 11.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Label: 22 px
    Caption: 22 px
    Menu: 21 px (a) Body text (b) Label (c) Caption (d) Menu
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) icons with no labels
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Title: 24 px
    Caption: 28 px (a) Title (b) Menu (c) Caption
15. 15.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
16. 16.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) fast-flashing lights (d) big touch targets
17. 17.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
18. 18.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) text that can grow (d) labels on every icon
19. 19.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) tiny tap areas (d) big touch targets
21. 21.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) big touch targets (d) icons with no labels
23. 23.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Hint: 24 px
    Body text: 13 px
25. 25.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
26. 26.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) text that can grow (d) labels on every icon
27. 27.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Footer: 12 px
    Body text: 10 px
    Caption: 20 px
    Label: 14 px
29. 29.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) labels on every icon (d) icons with no labels
30. 30.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
31. 31.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
32. 32.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
33. 33.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Menu: 23 px
    Hint: 17 px
    Footer: 21 px
    Caption: 17 px
35. 35.Which of these makes the app harder to use? (a) colour as the only clue (b) strong colour contrast (c) labels on every icon (d) captions on videos
36. 36.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
37. 37.♿ 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
38. 38.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
39. 39.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
40. 40.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) labels on every icon (d) tiny tap areas

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