App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 78 · 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” makes the app harder to use. (a) True (b) False
2. 2.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) icons with no labels (d) big touch targets
4. 4.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
5. 5.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
6. 6.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Title: 28 px
   Caption: 24 px
   Label: 24 px (a) Title (b) Menu (c) Caption (d) Label
8. 8.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) text that can grow
9. 9.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) sudden loud sounds
10. 10.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
11. 11.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Footer: 24 px
    Label: 22 px
    Title: 24 px
    Menu: 26 px (a) Title (b) Caption (c) Footer (d) Label
14. 14.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
15. 15.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) sudden loud sounds
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Body text: 13 px
    Caption: 24 px
    Menu: 27 px (a) Caption (b) Menu (c) Body text (d) Hint
17. 17.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
18. 18.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) strong colour contrast
19. 19.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Hint: 12 px
    Title: 23 px
    Caption: 21 px
    Label: 23 px
21. 21.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
22. 22.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
24. 24.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) colour as the only clue (d) icons with no labels
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Title: 19 px
    Hint: 14 px (a) Hint (b) Body text (c) Title
26. 26.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) captions on videos
28. 28.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
30. 30.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Footer: 14 px
    Caption: 14 px
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) text that can grow (d) big touch targets
33. 33.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
34. 34.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) labels on every icon (d) icons with no labels
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Menu: 20 px
    Footer: 14 px (a) Footer (b) Menu (c) Label
36. 36.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these makes the app harder to use? (a) tiny tap areas (b) text that can grow (c) captions on videos (d) big touch targets
38. 38.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Footer: 19 px
    Title: 18 px
40. 40.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False

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