App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 152 · 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: big touch targets? (a) helps everyone (b) makes it harder
2. 2.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
3. 3.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
4. 4.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) tiny tap areas (d) big touch targets
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) fast-flashing lights (d) big touch targets
6. 6.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 24 px
   Body text: 20 px
   Title: 14 px
   Caption: 10 px
8. 8.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
9. 9.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
10. 10.Which of these helps everyone use the app? (a) strong colour contrast (b) fast-flashing lights (c) sudden loud sounds (d) tiny tap areas
11. 11.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
14. 14.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) captions on videos (d) colour as the only clue
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) fast-flashing lights (d) sudden loud sounds
16. 16.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Label: 13 px
    Caption: 23 px
18. 18.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 16 px
    Menu: 9 px (a) Title (b) Menu (c) Label
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Hint: 24 px
    Caption: 14 px
    Label: 10 px
    Title: 15 px
21. 21.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
22. 22.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) captions on videos (d) icons with no labels
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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Label: 21 px
    Body text: 16 px
25. 25.Which of these makes the app harder to use? (a) big touch targets (b) sudden loud sounds (c) text that can grow (d) captions on videos
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
27. 27.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
30. 30.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Caption: 15 px
    Body text: 13 px
    Footer: 11 px
    Hint: 16 px
33. 33.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds
34. 34.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Hint: 13 px
    Caption: 16 px
    Body text: 24 px
36. 36.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
37. 37.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) colour as the only clue (d) tiny tap areas
38. 38.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) icons with no labels
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
40. 40.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) icons with no labels (d) colour as the only clue

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