App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 862 · 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.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
2. 2.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
3. 3.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
4. 4.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
5. 5.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) captions on videos (d) tiny tap areas
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 21 px
   Caption: 10 px
   Menu: 22 px
   Hint: 21 px
7. 7.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
8. 8.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
9. 9.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
10. 10.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
11. 11.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
13. 13.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
14. 14.♿ 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
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Menu: 19 px
    Footer: 20 px
    Hint: 11 px
    Body text: 16 px
16. 16.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) labels on every icon (d) text that can grow
17. 17.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Menu: 18 px
    Hint: 20 px
    Footer: 23 px
    Caption: 13 px (a) Caption (b) Menu (c) Body text (d) Hint
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Title: 24 px
    Hint: 9 px (a) Hint (b) Label (c) Title
20. 20.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) captions on videos
22. 22.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
23. 23.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
24. 24.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
25. 25.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) colour as the only clue (d) labels on every icon
27. 27.Which of these makes the app harder to use? (a) fast-flashing lights (b) strong colour contrast (c) big touch targets (d) labels on every icon
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Menu: 22 px
    Caption: 12 px
    Hint: 24 px
29. 29.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) captions on videos (d) text that can grow
30. 30.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
31. 31.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
32. 32.Which of these makes the app harder to use? (a) labels on every icon (b) colour as the only clue (c) text that can grow (d) strong colour contrast
33. 33.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) text that can grow (d) labels on every icon
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Title: 21 px
    Hint: 13 px
    Footer: 21 px
    Body text: 20 px
35. 35.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) icons with no labels (d) sudden loud sounds
36. 36.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
37. 37.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Title: 25 px
    Caption: 28 px (a) Title (b) Footer (c) Caption
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) fast-flashing lights (d) icons with no labels
40. 40.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server

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