App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 709 · 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.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 20 px
   Title: 14 px
   Footer: 19 px
3. 3.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
5. 5.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) text that can grow
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 23 px
   Menu: 12 px
   Body text: 17 px
   Title: 11 px
8. 8.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) big touch targets (d) fast-flashing lights
9. 9.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) big touch targets
11. 11.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
12. 12.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
13. 13.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) big touch targets (d) labels on every icon
14. 14.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
15. 15.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) sudden loud sounds (d) icons with no labels
16. 16.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Caption: 12 px
    Body text: 18 px
    Footer: 17 px (a) Caption (b) Title (c) Body text (d) Footer
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Menu: 21 px
    Body text: 14 px
    Caption: 24 px
    Footer: 20 px
19. 19.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Label: 13 px
    Footer: 22 px
21. 21.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
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.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) colour as the only clue
24. 24.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
25. 25.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) text that can grow (d) tiny tap areas
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Body text: 13 px
    Label: 19 px
28. 28.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
30. 30.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
32. 32.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) fast-flashing lights (d) sudden loud sounds
33. 33.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Hint: 21 px
    Footer: 20 px
    Caption: 21 px
    Label: 11 px
35. 35.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) tiny tap areas (d) fast-flashing lights
36. 36.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
38. 38.♿ A screen has 10 icon buttons. Only 7 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: strong colour contrast? (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?
    Label: 12 px
    Title: 17 px
    Caption: 17 px

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