App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 238 · 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: icons with no labels? (a) makes it harder (b) helps everyone
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 23 px
   Caption: 20 px
   Body text: 14 px
   Hint: 26 px
   Title: 17 px (a) Label (b) Hint (c) Caption (d) Body text
3. 3.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
5. 5.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) fast-flashing lights (d) icons with no labels
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 12 px
   Hint: 11 px
   Menu: 22 px
   Caption: 10 px
   Body text: 10 px
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 19 px
   Caption: 23 px
   Label: 15 px
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 13 px
   Title: 23 px
   Label: 27 px (a) Label (b) Body text (c) Title
9. 9.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
10. 10.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
11. 11.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) tiny tap areas (d) captions on videos
12. 12.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) tiny tap areas (d) colour as the only clue
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Hint: 24 px
    Label: 21 px
14. 14.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) tiny tap areas
15. 15.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Footer: 11 px
    Label: 17 px (a) Label (b) Title (c) Footer
17. 17.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
18. 18.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) labels on every icon (d) strong colour contrast
19. 19.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
20. 20.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) colour as the only clue (d) text that can grow
21. 21.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) captions on videos (d) sudden loud sounds
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) text that can grow (d) strong colour contrast
25. 25.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
26. 26.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
27. 27.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) big touch targets
28. 28.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Hint: 21 px
    Footer: 23 px
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Footer: 13 px
    Caption: 12 px
32. 32.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Caption: 13 px
    Title: 17 px
    Body text: 19 px
34. 34.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) text that can grow (d) captions on videos
35. 35.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
36. 36.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) fast-flashing lights
37. 37.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
38. 38.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Label: 20 px
    Title: 12 px
40. 40.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) text that can grow (d) fast-flashing lights

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