App Dev Worksheet: Accessibility

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

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