App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 668 · 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) big touch targets (b) sudden loud sounds (c) captions on videos (d) labels on every icon
2. 2.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) colour as the only clue (d) captions on videos
4. 4.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
5. 5.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) text that can grow (d) tiny tap areas
6. 6.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) icons with no labels
8. 8.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
9. 9.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Body text: 24 px
    Footer: 27 px
    Menu: 9 px (a) Menu (b) Hint (c) Footer (d) Body text
11. 11.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) captions on videos
12. 12.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
13. 13.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Body text: 19 px
    Menu: 14 px (a) Hint (b) Menu (c) Body text
15. 15.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
16. 16.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) icons with no labels (d) fast-flashing lights
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
18. 18.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) fast-flashing lights (d) icons with no labels
19. 19.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
20. 20.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) fast-flashing lights (d) text that can grow
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Title: 22 px
    Label: 10 px (a) Label (b) Hint (c) Title
22. 22.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
23. 23.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Body text: 9 px
    Title: 24 px (a) Hint (b) Title (c) Body text
25. 25.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Hint: 14 px
    Title: 27 px (a) Title (b) Label (c) Hint
27. 27.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Footer: 19 px
    Menu: 11 px (a) Footer (b) Menu (c) Label
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Hint: 13 px
    Caption: 22 px
    Footer: 15 px
    Title: 11 px
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Footer: 11 px
    Body text: 10 px
31. 31.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
32. 32.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
33. 33.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) tiny tap areas (d) text that can grow
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Footer: 11 px
    Hint: 16 px (a) Footer (b) Hint (c) Body text
36. 36.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
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.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) sudden loud sounds
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Caption: 23 px
    Menu: 10 px
    Title: 19 px
    Hint: 17 px
40. 40.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True

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