App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 333 · 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: 17 px
   Body text: 19 px
   Footer: 9 px
   Caption: 28 px
   Title: 20 px (a) Caption (b) Label (c) Body text (d) Footer
2. 2.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
3. 3.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) labels on every icon (d) text that can grow
4. 4.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) labels on every icon (d) text that can grow
6. 6.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) big touch targets (d) colour as the only clue
7. 7.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) sudden loud sounds
8. 8.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) icons with no labels (d) labels on every icon
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
10. 10.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Hint: 18 px
    Body text: 22 px
    Title: 21 px
    Footer: 13 px (a) Label (b) Body text (c) Footer (d) Hint
12. 12.♿ A screen has 11 icon buttons. Only 8 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?
    Hint: 18 px
    Footer: 12 px
    Body text: 27 px
    Label: 16 px (a) Label (b) Body text (c) Footer (d) Hint
14. 14.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) captions on videos
15. 15.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
16. 16.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) sudden loud sounds (d) strong colour contrast
17. 17.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) captions on videos
18. 18.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Hint: 22 px
    Caption: 28 px
    Label: 12 px (a) Hint (b) Title (c) Caption (d) Label
20. 20.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to add colour (d) to slow them down
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) text that can grow (d) tiny tap areas
22. 22.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) icons with no labels (d) colour as the only clue
23. 23.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) strong colour contrast
24. 24.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Title: 14 px
    Body text: 20 px
    Menu: 21 px
    Hint: 20 px
26. 26.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) tiny tap areas (d) text that can grow
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Hint: 9 px
    Label: 19 px
    Body text: 27 px (a) Body text (b) Title (c) Hint (d) Label
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Footer: 27 px
    Hint: 27 px
    Menu: 17 px
    Title: 14 px (a) Hint (b) Footer (c) Title (d) Body text
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Menu: 19 px
    Caption: 20 px
    Hint: 20 px
    Footer: 18 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Title: 16 px
    Body text: 14 px
    Hint: 25 px (a) Caption (b) Title (c) Body text (d) Hint
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Title: 20 px
    Body text: 10 px (a) Footer (b) Body text (c) Title
33. 33.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
34. 34.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) tiny tap areas (d) text that can grow
35. 35.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) sudden loud sounds
36. 36.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
37. 37.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
38. 38.♿ 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
39. 39.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
40. 40.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone

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