App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 107 · 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 of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) colour as the only clue
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 19 px
   Menu: 12 px
   Body text: 28 px
   Title: 28 px
   Hint: 24 px (a) Title (b) Menu (c) Body text (d) Footer
3. 3.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 19 px
   Footer: 13 px
   Label: 17 px
   Body text: 16 px (a) Body text (b) Footer (c) Title (d) Label
5. 5.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 12 px
   Menu: 27 px
   Label: 18 px (a) Menu (b) Label (c) Footer
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
8. 8.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) colour as the only clue (d) icons with no labels
9. 9.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
10. 10.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) fast-flashing lights (d) captions on videos
11. 11.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) captions on videos (d) sudden loud sounds
12. 12.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Menu: 14 px
    Body text: 18 px
    Title: 14 px
15. 15.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
16. 16.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) strong colour contrast
17. 17.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) colour as the only clue (d) text that can grow
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Caption: 18 px
    Label: 23 px
    Body text: 14 px
    Footer: 17 px
19. 19.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) labels on every icon
20. 20.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Caption: 17 px
    Body text: 18 px
    Title: 21 px
    Hint: 12 px (a) Footer (b) Hint (c) Caption (d) Body text
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Hint: 20 px
    Footer: 10 px
    Caption: 11 px
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) fast-flashing lights (d) sudden loud sounds
24. 24.♿ A screen has 7 icon buttons. Only 3 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?
    Label: 15 px
    Menu: 24 px
    Title: 16 px
    Footer: 10 px
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 21 px
    Body text: 17 px
    Footer: 10 px
    Menu: 24 px (a) Label (b) Footer (c) Body text (d) Menu
28. 28.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
29. 29.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
30. 30.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Footer: 14 px
    Body text: 22 px (a) Footer (b) Body text (c) Hint
34. 34.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Caption: 16 px
    Title: 22 px
    Hint: 9 px (a) Title (b) Hint (c) Caption (d) Label
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Label: 13 px
    Footer: 12 px
    Title: 20 px
    Hint: 19 px
37. 37.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Label: 19 px
    Hint: 22 px
    Title: 11 px
    Footer: 21 px
39. 39.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) big touch targets (d) sudden loud sounds
40. 40.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the server (d) the battery

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