App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 552 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 22 px
   Footer: 24 px
   Caption: 17 px
   Menu: 10 px
2. 2.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
4. 4.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
6. 6.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
7. 7.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 9 px
   Caption: 21 px
   Label: 27 px (a) Title (b) Caption (c) Label
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 22 px
   Caption: 22 px
   Label: 13 px (a) Menu (b) Label (c) Caption
10. 10.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
11. 11.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Body text: 27 px
    Footer: 28 px (a) Footer (b) Title (c) Body text
14. 14.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) text that can grow (d) labels on every icon
15. 15.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) big touch targets (d) text that can grow
18. 18.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
20. 20.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Title: 18 px
    Hint: 13 px
    Menu: 13 px
22. 22.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Footer: 19 px
    Menu: 25 px (a) Menu (b) Footer (c) Hint
24. 24.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) captions on videos (d) text that can grow
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Label: 24 px
    Hint: 10 px
27. 27.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) captions on videos (d) icons with no labels
28. 28.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
29. 29.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
30. 30.Which of these helps everyone use the app? (a) strong colour contrast (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
31. 31.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
32. 32.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) colour as the only clue (d) text that can grow
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Body text: 23 px
    Label: 23 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Title: 9 px
    Footer: 26 px (a) Label (b) Title (c) Footer
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Caption: 17 px
    Footer: 12 px
    Title: 12 px
    Menu: 19 px
36. 36.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) captions on videos
38. 38.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
39. 39.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
40. 40.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) sudden loud sounds (d) text that can grow

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