App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 283 · 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.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) big touch targets (d) labels on every icon
2. 2.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) icons with no labels
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 16 px
   Body text: 10 px
   Caption: 23 px
   Label: 22 px
4. 4.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
5. 5.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) text that can grow (d) tiny tap areas
7. 7.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
8. 8.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) captions on videos
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Title: 24 px
   Label: 27 px
   Footer: 14 px
   Caption: 19 px (a) Body text (b) Label (c) Footer (d) Title
10. 10.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
11. 11.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) text that can grow (d) labels on every icon
12. 12.Which of these helps everyone use the app? (a) colour as the only clue (b) text that can grow (c) sudden loud sounds (d) tiny tap areas
13. 13.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) big touch targets (d) sudden loud sounds
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Body text: 25 px
    Menu: 27 px
    Label: 12 px
    Caption: 25 px (a) Menu (b) Label (c) Footer (d) Body text
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Hint: 13 px
    Label: 13 px
16. 16.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
18. 18.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) captions on videos (d) strong colour contrast
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Footer: 17 px
    Body text: 14 px
    Hint: 20 px
    Title: 23 px
20. 20.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Body text: 12 px
    Title: 23 px
    Hint: 24 px
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Hint: 12 px
    Body text: 19 px
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Footer: 22 px
    Hint: 21 px
    Caption: 21 px
    Label: 18 px
24. 24.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
25. 25.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
26. 26.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
28. 28.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Label: 26 px
    Hint: 9 px
    Menu: 22 px (a) Footer (b) Hint (c) Menu (d) Label
30. 30.♿ A screen has 7 icon buttons. Only 3 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. Which text on this screen is too small?
    Hint: 28 px
    Title: 22 px
    Footer: 11 px
    Body text: 17 px (a) Body text (b) Title (c) Footer (d) Hint
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Hint: 21 px
    Menu: 13 px
    Footer: 10 px
    Title: 20 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Hint: 19 px
    Body text: 12 px
34. 34.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
35. 35.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Hint: 23 px
    Title: 13 px
    Caption: 21 px
    Label: 18 px (a) Title (b) Caption (c) Footer (d) Hint
37. 37.♿ 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
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Menu: 10 px
    Hint: 24 px (a) Label (b) Hint (c) Menu
39. 39.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
40. 40.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?

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