App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 137 · 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.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 20 px
   Caption: 21 px
   Hint: 23 px
   Footer: 20 px
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) sudden loud sounds (d) tiny tap areas
4. 4.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Label: 23 px
   Title: 16 px
   Body text: 17 px (a) Body text (b) Label (c) Menu (d) Title
6. 6.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
7. 7.♿ 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
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 17 px
   Title: 11 px
   Hint: 19 px (a) Title (b) Hint (c) Footer
9. 9.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) colour as the only clue
11. 11.♿ A screen has 8 icon buttons. Only 7 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: labels on every icon? (a) makes it harder (b) helps everyone
13. 13.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Footer: 14 px
    Hint: 20 px
    Title: 19 px
    Body text: 18 px
15. 15.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Body text: 23 px
    Menu: 23 px (a) Title (b) Body text (c) Menu
17. 17.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
19. 19.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Hint: 22 px
    Menu: 10 px
    Label: 15 px
21. 21.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
22. 22.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
23. 23.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) captions on videos (d) tiny tap areas
24. 24.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) strong colour contrast (d) labels on every icon
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Footer: 24 px
    Menu: 16 px
    Caption: 16 px
    Title: 17 px (a) Footer (b) Menu (c) Caption (d) Label
27. 27.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Footer: 23 px
    Body text: 21 px (a) Title (b) Body text (c) Footer
29. 29.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) icons with no labels (d) tiny tap areas
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Caption: 14 px
    Label: 22 px
    Body text: 22 px
31. 31.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
32. 32.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) sudden loud sounds (d) tiny tap areas
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) captions on videos (d) icons with no labels
35. 35.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
36. 36.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
37. 37.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Label: 24 px
    Hint: 10 px
39. 39.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?

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