App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 151 · 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?
   Footer: 10 px
   Body text: 17 px
   Label: 10 px
   Menu: 22 px
   Caption: 12 px
2. 2.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) labels on every icon
3. 3.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) captions on videos
4. 4.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 22 px
   Menu: 19 px
   Label: 16 px
   Body text: 12 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 28 px
   Title: 25 px
   Body text: 9 px
   Hint: 20 px
   Label: 23 px (a) Title (b) Caption (c) Hint (d) Body text
7. 7.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a sound (d) a long animation
8. 8.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
9. 9.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
10. 10.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) big touch targets (d) tiny tap areas
11. 11.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) text that can grow (d) strong colour contrast
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 17 px
    Caption: 13 px
13. 13.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
14. 14.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Body text: 19 px
    Hint: 13 px
    Title: 25 px
    Footer: 16 px (a) Title (b) Caption (c) Body text (d) Hint
16. 16.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Label: 19 px
    Body text: 14 px
    Caption: 13 px
    Menu: 20 px
18. 18.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
19. 19.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
20. 20.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) captions on videos (d) big touch targets
21. 21.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
23. 23.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Label: 20 px
    Menu: 13 px
    Caption: 22 px
    Hint: 23 px
26. 26.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
27. 27.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) labels on every icon
28. 28.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
29. 29.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) captions on videos (d) colour as the only clue
30. 30.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) labels on every icon (d) big touch targets
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Hint: 15 px
    Body text: 22 px
    Title: 16 px
32. 32.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
33. 33.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Menu: 23 px
    Body text: 24 px
    Label: 28 px
    Hint: 9 px (a) Title (b) Menu (c) Hint (d) Body text
35. 35.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
36. 36.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
37. 37.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) captions on videos (d) big touch targets
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: “icons with no labels” helps everyone use the app. (a) False (b) True
40. 40.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False

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