App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 344 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 18 px
   Title: 12 px
   Hint: 18 px
3. 3.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) captions on videos
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 22 px
   Body text: 19 px
   Caption: 19 px
   Footer: 24 px
   Title: 24 px
5. 5.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) colour as the only clue (d) labels on every icon
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 19 px
   Menu: 21 px
   Body text: 13 px (a) Menu (b) Body text (c) Title
7. 7.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
8. 8.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) icons with no labels (d) text that can grow
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Hint: 18 px
   Menu: 20 px
   Title: 27 px
   Body text: 23 px (a) Menu (b) Caption (c) Hint (d) Title
10. 10.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Label: 19 px
    Hint: 19 px
12. 12.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
13. 13.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
15. 15.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
17. 17.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
19. 19.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 17 px
    Menu: 20 px
    Footer: 10 px
    Title: 14 px
21. 21.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) colour as the only clue (d) strong colour contrast
22. 22.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) text that can grow (d) icons with no labels
23. 23.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) big touch targets (d) text that can grow
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Footer: 16 px
    Title: 21 px (a) Title (b) Menu (c) Footer
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Caption: 21 px
    Menu: 10 px
    Footer: 15 px
26. 26.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Menu: 20 px
    Caption: 19 px (a) Menu (b) Caption (c) Label
29. 29.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
30. 30.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
32. 32.Which of these makes the app harder to use? (a) labels on every icon (b) sudden loud sounds (c) text that can grow (d) captions on videos
33. 33.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) strong colour contrast (d) captions on videos
34. 34.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
35. 35.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
36. 36.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) icons with no labels (d) colour as the only clue
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) tiny tap areas (d) sudden loud sounds
38. 38.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
40. 40.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon

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