App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 752 · 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.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
2. 2.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 11 px
   Body text: 13 px
   Footer: 16 px
   Hint: 13 px
4. 4.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
5. 5.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
6. 6.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
7. 7.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
8. 8.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) fast-flashing lights (d) text that can grow
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Hint: 13 px
    Title: 26 px
    Footer: 26 px
    Label: 22 px (a) Hint (b) Caption (c) Footer (d) Title
11. 11.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Title: 13 px
    Label: 16 px
    Menu: 13 px
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 14 px
    Hint: 22 px
    Title: 20 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Caption: 14 px
    Label: 11 px
15. 15.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
16. 16.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
17. 17.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
19. 19.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
20. 20.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) sudden loud sounds
22. 22.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
23. 23.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) tiny tap areas (d) labels on every icon
24. 24.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) colour as the only clue
26. 26.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
27. 27.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
28. 28.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
29. 29.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
30. 30.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
31. 31.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
33. 33.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
34. 34.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Label: 25 px
    Body text: 12 px (a) Body text (b) Label (c) Menu
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Title: 23 px
    Footer: 18 px (a) Title (b) Footer (c) Caption
37. 37.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these makes the app harder to use? (a) colour as the only clue (b) big touch targets (c) labels on every icon (d) text that can grow
39. 39.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) sudden loud sounds (d) colour as the only clue
40. 40.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder

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