App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 165 · 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) fast-flashing lights (b) icons with no labels (c) colour as the only clue (d) labels on every icon
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 20 px
   Title: 20 px
   Label: 13 px
   Hint: 28 px
   Caption: 21 px (a) Hint (b) Label (c) Title (d) Body text
3. 3.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
4. 4.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) strong colour contrast (d) tiny tap areas
6. 6.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) big touch targets (d) captions on videos
7. 7.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
8. 8.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
9. 9.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
10. 10.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
11. 11.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
12. 12.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Footer: 24 px
    Title: 9 px
    Hint: 20 px (a) Body text (b) Hint (c) Title (d) Footer
14. 14.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
15. 15.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) captions on videos (d) colour as the only clue
16. 16.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Menu: 16 px
    Label: 20 px
    Hint: 18 px
    Footer: 9 px (a) Label (b) Menu (c) Footer (d) Body text
18. 18.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
19. 19.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
20. 20.Which of these helps everyone use the app? (a) text that can grow (b) tiny tap areas (c) sudden loud sounds (d) icons with no labels
21. 21.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) tiny tap areas (d) colour as the only clue
22. 22.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) fast-flashing lights (d) icons with no labels
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Body text: 27 px
    Menu: 19 px
    Hint: 25 px (a) Hint (b) Menu (c) Body text (d) Label
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Label: 15 px
    Hint: 17 px
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Menu: 18 px
    Footer: 14 px (a) Footer (b) Menu (c) Hint
26. 26.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon
27. 27.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Body text: 24 px
    Footer: 23 px
    Title: 10 px
    Label: 24 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Label: 19 px
    Title: 20 px
    Menu: 27 px (a) Title (b) Menu (c) Label (d) Body text
30. 30.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
31. 31.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
32. 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Label: 15 px
    Title: 10 px
34. 34.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
35. 35.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
36. 36.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Body text: 14 px
    Title: 27 px (a) Title (b) Body text (c) Footer
38. 38.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Label: 24 px
    Body text: 10 px
    Title: 16 px
    Hint: 18 px

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