App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 728 · 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: 20 px
   Title: 22 px
   Menu: 11 px
2. 2.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 19 px
   Footer: 10 px
   Menu: 22 px
   Caption: 15 px
4. 4.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) big touch targets (d) captions on videos
5. 5.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) labels on every icon (d) strong colour contrast
6. 6.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 14 px
   Hint: 19 px
   Caption: 10 px
8. 8.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) icons with no labels (d) labels on every icon
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) icons with no labels
10. 10.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
11. 11.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
13. 13.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) strong colour contrast (d) colour as the only clue
14. 14.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
15. 15.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
16. 16.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
17. 17.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
18. 18.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Footer: 10 px
    Hint: 24 px
    Menu: 23 px (a) Hint (b) Menu (c) Footer (d) Body text
20. 20.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
21. 21.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
23. 23.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
24. 24.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) sudden loud sounds (d) text that can grow
25. 25.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) everyone (d) only experts
26. 26.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
29. 29.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 18 px
    Menu: 26 px
    Caption: 23 px
    Body text: 17 px (a) Caption (b) Menu (c) Hint (d) Title
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Hint: 23 px
    Title: 22 px
    Body text: 13 px
32. 32.Which of these makes the app harder to use? (a) labels on every icon (b) colour as the only clue (c) strong colour contrast (d) text that can grow
33. 33.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
34. 34.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Footer: 20 px
    Title: 22 px
36. 36.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) tiny tap areas
38. 38.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) big touch targets
39. 39.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Menu: 23 px
    Title: 19 px
    Footer: 14 px
    Caption: 12 px

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