App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 683 · 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) captions on videos (b) tiny tap areas (c) big touch targets (d) labels on every icon
2. 2.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) icons with no labels
3. 3.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 9 px
   Label: 26 px
   Title: 28 px
   Hint: 18 px (a) Hint (b) Title (c) Label (d) Footer
5. 5.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
6. 6.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
7. 7.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
8. 8.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
9. 9.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 24 px
    Label: 10 px
    Body text: 28 px (a) Menu (b) Label (c) Body text
11. 11.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Hint: 15 px
    Caption: 15 px
13. 13.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
14. 14.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
15. 15.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) sudden loud sounds (d) colour as the only clue
16. 16.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
17. 17.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
18. 18.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Body text: 12 px
    Caption: 19 px (a) Menu (b) Caption (c) Body text
20. 20.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
22. 22.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
23. 23.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
27. 27.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
28. 28.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
29. 29.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) text that can grow (d) strong colour contrast
30. 30.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) colour as the only clue (d) sudden loud sounds
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Caption: 11 px
    Hint: 18 px
    Body text: 14 px
32. 32.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) labels on every icon (d) strong colour contrast
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 13 px
    Label: 16 px
34. 34.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) labels on every icon (d) text that can grow
35. 35.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
36. 36.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
38. 38.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
39. 39.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Caption: 27 px
    Body text: 16 px
    Label: 24 px
    Hint: 17 px (a) Footer (b) Label (c) Caption (d) Body text

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