App Dev Worksheet: Accessibility

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

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