App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 265 · 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) captions on videos (b) strong colour contrast (c) labels on every icon (d) fast-flashing lights
2. 2.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
3. 3.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
4. 4.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
6. 6.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 11 px
   Caption: 14 px
   Body text: 22 px
   Footer: 16 px
   Menu: 23 px
8. 8.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) colour as the only clue (d) big touch targets
9. 9.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) strong colour contrast (d) labels on every icon
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Menu: 14 px
    Caption: 14 px
    Hint: 22 px
    Footer: 17 px
11. 11.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
13. 13.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
14. 14.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) tiny tap areas (d) labels on every icon
15. 15.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) strong colour contrast (d) labels on every icon
16. 16.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) fast-flashing lights (d) colour as the only clue
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Footer: 11 px
    Menu: 13 px
    Caption: 24 px
18. 18.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
19. 19.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) fast-flashing lights (d) icons with no labels
20. 20.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
21. 21.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
22. 22.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) strong colour contrast (d) fast-flashing lights
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Title: 15 px
    Hint: 18 px
    Body text: 18 px
    Label: 21 px
24. 24.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
25. 25.♿ 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
26. 26.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) tiny tap areas
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Label: 10 px
    Menu: 19 px
28. 28.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) fast-flashing lights
29. 29.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
30. 30.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Title: 17 px
    Hint: 20 px
    Menu: 26 px (a) Title (b) Hint (c) Menu (d) Footer
32. 32.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) labels on every icon (d) sudden loud sounds
33. 33.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
34. 34.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 19 px
    Body text: 27 px (a) Hint (b) Title (c) Body text
36. 36.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) icons with no labels (d) captions on videos
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Hint: 13 px
    Menu: 25 px
    Footer: 20 px (a) Menu (b) Body text (c) Hint (d) Footer
39. 39.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “captions on videos” makes the app harder to use. (a) True (b) False

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