App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 101 · 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) big touch targets (b) text that can grow (c) colour as the only clue (d) strong colour contrast
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
3. 3.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 18 px
   Caption: 14 px
   Footer: 19 px
   Title: 25 px (a) Menu (b) Footer (c) Title (d) Caption
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 25 px
   Label: 10 px
   Footer: 24 px (a) Body text (b) Footer (c) Label
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 17 px
   Hint: 18 px
   Label: 22 px
   Body text: 11 px
   Menu: 21 px
7. 7.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
8. 8.True or false: “text that can grow” 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?
   Label: 27 px
   Title: 17 px
   Hint: 14 px
   Footer: 19 px (a) Footer (b) Label (c) Hint (d) Title
10. 10.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
11. 11.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
12. 12.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
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) sudden loud sounds (d) strong colour contrast
14. 14.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Title: 23 px
    Caption: 24 px
    Footer: 10 px
    Body text: 23 px
16. 16.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Title: 10 px
    Caption: 21 px
    Label: 23 px (a) Label (b) Caption (c) Menu (d) Title
18. 18.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Menu: 24 px
    Body text: 17 px
    Title: 20 px
    Footer: 9 px (a) Footer (b) Body text (c) Menu (d) Caption
20. 20.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
21. 21.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
22. 22.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) captions on videos
23. 23.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
27. 27.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) text that can grow (d) icons with no labels
28. 28.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
29. 29.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) colour as the only clue (d) icons with no labels
30. 30.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) strong colour contrast (d) captions on videos
31. 31.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) fast-flashing lights
32. 32.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Menu: 19 px
    Caption: 27 px
    Body text: 9 px (a) Caption (b) Body text (c) Title (d) Menu
35. 35.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
36. 36.♿ A screen has 6 icon buttons. Only 1 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?
    Menu: 17 px
    Hint: 12 px
    Body text: 15 px
    Title: 21 px
    Caption: 19 px
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Body text: 22 px
    Hint: 17 px
39. 39.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) strong colour contrast
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Footer: 15 px
    Caption: 23 px

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