App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 746 · 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: strong colour contrast? (a) makes it harder (b) helps everyone
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Caption: 14 px
   Hint: 23 px
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 23 px
   Caption: 21 px
   Menu: 18 px
   Footer: 12 px
4. 4.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
5. 5.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) icons with no labels (d) tiny tap areas
7. 7.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
8. 8.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
9. 9.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Label: 24 px
    Title: 19 px
    Caption: 10 px (a) Caption (b) Title (c) Label (d) Footer
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Menu: 10 px
    Title: 19 px
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Hint: 24 px
    Menu: 27 px
    Title: 23 px
    Body text: 13 px (a) Body text (b) Hint (c) Label (d) Menu
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) the server (d) fast typists
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Body text: 13 px
    Menu: 23 px
    Caption: 22 px
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) fast-flashing lights (d) strong colour contrast
16. 16.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
17. 17.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
19. 19.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
20. 20.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
21. 21.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) captions on videos (d) text that can grow
22. 22.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) strong colour contrast (d) big touch targets
24. 24.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
25. 25.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
26. 26.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) text that can grow
27. 27.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
28. 28.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
29. 29.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
31. 31.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
32. 32.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) big touch targets
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Label: 23 px
    Menu: 19 px
    Title: 22 px (a) Title (b) Menu (c) Footer (d) Label
34. 34.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
35. 35.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Menu: 27 px
    Title: 13 px
    Body text: 28 px
    Caption: 17 px (a) Menu (b) Footer (c) Title (d) Body text
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Title: 16 px
    Hint: 28 px (a) Body text (b) Hint (c) Title
38. 38.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) big touch targets (d) icons with no labels
40. 40.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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