App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 388 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 22 px
   Caption: 12 px
   Body text: 16 px
   Hint: 14 px
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) captions on videos (d) fast-flashing lights
3. 3.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
5. 5.Which of these makes the app harder to use? (a) colour as the only clue (b) labels on every icon (c) captions on videos (d) text that can grow
6. 6.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
7. 7.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
8. 8.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
9. 9.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
10. 10.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
11. 11.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
12. 12.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Footer: 24 px
    Label: 14 px
    Menu: 24 px
15. 15.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
16. 16.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) labels on every icon (d) sudden loud sounds
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Hint: 14 px
    Label: 10 px
18. 18.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Label: 15 px
    Menu: 15 px
20. 20.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Hint: 24 px
    Label: 26 px (a) Hint (b) Label (c) Footer
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Footer: 18 px
    Hint: 9 px
    Title: 20 px (a) Hint (b) Title (c) Caption (d) Footer
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Title: 16 px
    Body text: 14 px
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Title: 17 px
    Body text: 19 px
25. 25.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
26. 26.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Footer: 17 px
    Label: 10 px
28. 28.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) captions on videos (d) sudden loud sounds
29. 29.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) text that can grow (d) fast-flashing lights
30. 30.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
31. 31.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) labels on every icon (d) captions on videos
33. 33.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
34. 34.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
35. 35.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
36. 36.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
37. 37.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) fast-flashing lights
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Menu: 14 px
    Label: 11 px
    Caption: 19 px
    Hint: 18 px
39. 39.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
40. 40.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True

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