App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 740 · 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 helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) sudden loud sounds (d) fast-flashing lights
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
3. 3.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) tiny tap areas (d) strong colour contrast
4. 4.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) big touch targets (d) icons with no labels
5. 5.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
6. 6.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
7. 7.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
8. 8.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 17 px
   Title: 19 px
   Body text: 26 px
   Menu: 14 px (a) Menu (b) Body text (c) Title (d) Hint
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Label: 27 px
    Footer: 12 px (a) Caption (b) Label (c) Footer
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) sudden loud sounds (d) colour as the only clue
12. 12.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) text that can grow
13. 13.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
14. 14.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 11 px
    Title: 19 px
    Body text: 18 px (a) Hint (b) Title (c) Body text
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Footer: 12 px
    Body text: 20 px
    Title: 22 px
17. 17.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) captions on videos (d) text that can grow
18. 18.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Label: 12 px
    Caption: 20 px
    Body text: 23 px
    Title: 14 px
20. 20.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Label: 9 px
    Hint: 18 px
    Footer: 20 px
    Title: 17 px (a) Label (b) Body text (c) Footer (d) Hint
22. 22.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) text that can grow (d) tiny tap areas
23. 23.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
25. 25.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Title: 17 px
    Footer: 23 px (a) Title (b) Body text (c) Footer
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Body text: 22 px
    Footer: 14 px
    Title: 16 px
    Hint: 12 px
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
29. 29.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
30. 30.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
31. 31.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Title: 21 px
    Caption: 14 px
33. 33.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
35. 35.Which of these makes the app harder to use? (a) captions on videos (b) fast-flashing lights (c) big touch targets (d) strong colour contrast
36. 36.♿ A screen has 8 icon buttons. Only 6 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. How many texts on this screen are too small?
    Title: 24 px
    Footer: 12 px
    Body text: 18 px
38. 38.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Body text: 22 px
    Label: 15 px
    Caption: 23 px
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Label: 24 px
    Title: 24 px
    Hint: 23 px
    Body text: 17 px

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