App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 499 · 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: icons with no labels? (a) helps everyone (b) makes it harder
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 19 px
   Body text: 11 px
   Footer: 21 px
   Menu: 14 px
   Title: 11 px
3. 3.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
4. 4.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
5. 5.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
6. 6.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
7. 7.♿ 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
8. 8.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) big touch targets (d) sudden loud sounds
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 19 px
   Caption: 17 px
   Body text: 14 px
   Footer: 24 px (a) Body text (b) Footer (c) Label (d) Caption
10. 10.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) fast-flashing lights (d) sudden loud sounds
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Title: 18 px
    Menu: 16 px
    Footer: 19 px
    Body text: 12 px
12. 12.♿ A screen has 11 icon buttons. Only 5 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. How many texts on this screen are too small?
    Menu: 18 px
    Caption: 21 px
    Title: 13 px
    Body text: 18 px
14. 14.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Caption: 19 px
    Title: 27 px
    Hint: 9 px (a) Caption (b) Hint (c) Title (d) Footer
16. 16.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Body text: 20 px
    Title: 12 px
    Footer: 12 px
18. 18.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) captions on videos (d) colour as the only clue
21. 21.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) tiny tap areas (d) labels on every icon
22. 22.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
23. 23.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
24. 24.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
25. 25.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
26. 26.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Footer: 15 px
    Body text: 13 px
    Label: 18 px
    Menu: 14 px
28. 28.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) icons with no labels (d) labels on every icon
30. 30.♿ A screen has 8 icon buttons. Only 7 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. How many texts on this screen are too small?
    Footer: 22 px
    Body text: 15 px
    Label: 14 px
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Menu: 28 px
    Body text: 11 px
    Caption: 21 px
    Hint: 28 px (a) Body text (b) Caption (c) Title (d) Menu
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) colour as the only clue
35. 35.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
36. 36.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) captions on videos (d) colour as the only clue
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Body text: 11 px
    Menu: 23 px (a) Title (b) Menu (c) Body text
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Caption: 11 px
    Footer: 23 px (a) Body text (b) Caption (c) Footer
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Hint: 21 px
    Body text: 14 px (a) Hint (b) Footer (c) Body text
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Hint: 24 px
    Menu: 12 px

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