App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 312 · 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) strong colour contrast (b) text that can grow (c) captions on videos (d) tiny tap areas
2. 2.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
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) colour as the only clue (d) sudden loud sounds
4. 4.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
5. 5.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 11 px
   Label: 20 px
   Menu: 15 px
   Caption: 20 px
   Title: 18 px
7. 7.Which of these makes the app harder to use? (a) labels on every icon (b) colour as the only clue (c) captions on videos (d) big touch targets
8. 8.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
9. 9.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Body text: 19 px
    Caption: 15 px
    Hint: 12 px
    Menu: 15 px
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Hint: 25 px
    Footer: 11 px (a) Hint (b) Caption (c) Footer
12. 12.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) tiny tap areas
13. 13.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) icons with no labels
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) sudden loud sounds
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
16. 16.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Hint: 23 px
    Label: 11 px
18. 18.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
19. 19.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) text that can grow
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 16 px
    Label: 16 px (a) Hint (b) Title (c) Label
21. 21.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Body text: 19 px
    Hint: 24 px
    Title: 13 px
    Footer: 13 px
23. 23.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
25. 25.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
27. 27.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
28. 28.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
29. 29.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) strong colour contrast
31. 31.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
32. 32.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) icons with no labels
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Body text: 17 px
    Footer: 20 px
    Hint: 13 px
34. 34.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
35. 35.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
36. 36.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Hint: 13 px
    Label: 16 px (a) Hint (b) Label (c) Footer
38. 38.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Label: 9 px
    Menu: 19 px (a) Label (b) Menu (c) Title
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Menu: 28 px
    Footer: 17 px (a) Footer (b) Menu (c) Label

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