App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 475 · 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. Which text on this screen is too small?
   Label: 16 px
   Body text: 25 px
   Title: 9 px (a) Body text (b) Title (c) Label
2. 2.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
3. 3.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 25 px
   Hint: 10 px
   Body text: 17 px
   Menu: 24 px (a) Caption (b) Body text (c) Menu (d) Hint
5. 5.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
7. 7.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
8. 8.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) big touch targets
9. 9.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
10. 10.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
11. 11.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
12. 12.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Body text: 28 px
    Title: 24 px
    Footer: 9 px (a) Body text (b) Footer (c) Caption (d) Title
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) sudden loud sounds (d) icons with no labels
15. 15.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) big touch targets (d) strong colour contrast
16. 16.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Title: 10 px
    Footer: 19 px (a) Hint (b) Title (c) Footer
18. 18.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) tiny tap areas (d) strong colour contrast
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Title: 17 px
    Label: 27 px
    Body text: 16 px
    Footer: 28 px (a) Label (b) Title (c) Caption (d) Body text
20. 20.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) colour as the only clue
22. 22.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
23. 23.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) big touch targets (d) colour as the only clue
25. 25.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
26. 26.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
27. 27.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) fast-flashing lights (d) tiny tap areas
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Title: 17 px
    Menu: 11 px (a) Menu (b) Footer (c) Title
29. 29.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
30. 30.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Footer: 21 px
    Menu: 22 px
    Caption: 18 px
32. 32.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
33. 33.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
34. 34.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
35. 35.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) tiny tap areas (d) text that can grow
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Body text: 17 px
    Menu: 11 px (a) Body text (b) Caption (c) Menu
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Menu: 19 px
    Label: 10 px
38. 38.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) captions on videos
39. 39.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
40. 40.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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