App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 576 · 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.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
2. 2.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) so anyone can follow (d) to hide the sound
3. 3.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) labels on every icon (d) fast-flashing lights
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
7. 7.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a bright colour (d) a long animation
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 13 px
   Hint: 24 px
   Menu: 19 px
   Title: 23 px
   Caption: 15 px
9. 9.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) only experts (d) nobody
10. 10.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) captions on videos (d) icons with no labels
11. 11.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
12. 12.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
13. 13.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
15. 15.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
16. 16.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) captions on videos (d) strong colour contrast
17. 17.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) text that can grow
18. 18.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) text that can grow (d) captions on videos
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Title: 16 px
    Menu: 27 px
    Hint: 18 px
    Body text: 9 px (a) Menu (b) Body text (c) Title (d) Caption
20. 20.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Title: 13 px
    Caption: 23 px
    Hint: 19 px
    Footer: 18 px
22. 22.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) strong colour contrast (d) labels on every icon
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Caption: 23 px
    Title: 11 px
24. 24.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Title: 21 px
    Hint: 11 px
    Footer: 11 px
    Label: 17 px
26. 26.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) strong colour contrast
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Body text: 26 px
    Hint: 19 px (a) Body text (b) Hint (c) Label
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Footer: 13 px
    Label: 28 px
    Caption: 16 px (a) Caption (b) Footer (c) Label (d) Title
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Title: 14 px
    Hint: 21 px
    Footer: 21 px
    Label: 19 px
31. 31.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) tiny tap areas (d) big touch targets
32. 32.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Hint: 18 px
    Body text: 11 px
    Footer: 18 px
34. 34.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) big touch targets (d) labels on every icon
35. 35.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Hint: 25 px
    Menu: 11 px
    Label: 27 px
    Title: 28 px (a) Menu (b) Hint (c) Body text (d) Label
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Title: 17 px
    Body text: 17 px
    Menu: 12 px
    Label: 12 px
38. 38.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) labels on every icon (d) captions on videos
39. 39.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) strong colour contrast (d) text that can grow
40. 40.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone

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