App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 547 · 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: 20 px
   Caption: 12 px
   Title: 10 px
2. 2.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
4. 4.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
5. 5.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) fast-flashing lights
7. 7.Which of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) sudden loud sounds (d) colour as the only clue
8. 8.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
9. 9.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
10. 10.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) big touch targets
12. 12.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) icons with no labels
13. 13.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) text that can grow
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 11 px
    Menu: 23 px
    Label: 22 px
    Hint: 19 px (a) Hint (b) Menu (c) Footer (d) Label
15. 15.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
16. 16.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) labels on every icon
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Footer: 17 px
    Caption: 23 px
    Menu: 28 px (a) Footer (b) Caption (c) Menu (d) Title
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) sudden loud sounds
19. 19.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) text that can grow
21. 21.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) tiny tap areas (d) text that can grow
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Body text: 21 px
    Caption: 21 px (a) Body text (b) Footer (c) Caption
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 17 px
    Title: 11 px
    Hint: 23 px
    Body text: 17 px
    Caption: 14 px
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 12 px
    Title: 23 px
    Menu: 20 px
    Caption: 16 px (a) Caption (b) Menu (c) Label (d) Title
25. 25.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
26. 26.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
27. 27.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
28. 28.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
29. 29.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Title: 27 px
    Hint: 27 px
    Footer: 18 px
    Menu: 25 px (a) Hint (b) Title (c) Body text (d) Footer
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 22 px
    Caption: 12 px
33. 33.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) captions on videos (d) fast-flashing lights
34. 34.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) captions on videos (d) big touch targets
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Title: 23 px
    Menu: 27 px (a) Title (b) Body text (c) Menu
36. 36.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
37. 37.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) strong colour contrast (d) text that can grow
38. 38.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
40. 40.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder

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