App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 134 · 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.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
3. 3.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) labels on every icon (d) colour as the only clue
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 11 px
   Caption: 21 px
   Label: 19 px
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 26 px
   Footer: 27 px
   Title: 19 px
   Body text: 12 px
   Label: 18 px (a) Body text (b) Footer (c) Title (d) Hint
6. 6.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) big touch targets
7. 7.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 21 px
   Footer: 24 px
   Caption: 24 px
   Menu: 12 px
   Hint: 20 px
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Footer: 22 px
    Menu: 9 px (a) Menu (b) Caption (c) Footer
11. 11.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
13. 13.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Label: 16 px
    Menu: 23 px
    Footer: 21 px
    Caption: 10 px
15. 15.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
16. 16.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
18. 18.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
19. 19.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
20. 20.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Caption: 21 px
    Title: 21 px
    Hint: 17 px
    Body text: 14 px
22. 22.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Title: 20 px
    Label: 11 px
    Footer: 20 px
    Body text: 14 px
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) big touch targets
26. 26.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
27. 27.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) labels on every icon (d) icons with no labels
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Menu: 21 px
    Footer: 17 px
29. 29.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Hint: 16 px
    Title: 19 px
    Label: 17 px
    Menu: 13 px
31. 31.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Hint: 18 px
    Title: 21 px
33. 33.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
34. 34.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
35. 35.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) labels on every icon (d) colour as the only clue
36. 36.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Menu: 22 px
    Body text: 21 px
    Footer: 23 px
    Label: 12 px (a) Body text (b) Menu (c) Caption (d) Label
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Footer: 20 px
    Hint: 16 px
39. 39.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) sudden loud sounds (d) fast-flashing lights
40. 40.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone

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