App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 617 · 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?
   Menu: 17 px
   Caption: 18 px
   Title: 17 px
2. 2.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
3. 3.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
5. 5.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds
6. 6.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 25 px
   Title: 19 px
   Footer: 11 px
   Body text: 18 px (a) Label (b) Body text (c) Footer (d) Title
8. 8.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 19 px
   Title: 15 px
   Footer: 13 px
   Hint: 16 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Title: 12 px
    Hint: 11 px
    Label: 15 px
11. 11.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
12. 12.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) tiny tap areas
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) labels on every icon
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) icons with no labels (c) big touch targets (d) strong colour contrast
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.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
18. 18.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
19. 19.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
20. 20.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Menu: 17 px
    Hint: 15 px
    Footer: 16 px
    Title: 10 px
22. 22.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Footer: 15 px
    Menu: 12 px
24. 24.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) strong colour contrast (d) tiny tap areas
25. 25.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) sudden loud sounds (d) text that can grow
26. 26.Which of these makes the app harder to use? (a) captions on videos (b) sudden loud sounds (c) big touch targets (d) labels on every icon
27. 27.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
28. 28.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
29. 29.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) fast-flashing lights (d) big touch targets
30. 30.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) strong colour contrast (d) sudden loud sounds
32. 32.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) labels on every icon (d) tiny tap areas
33. 33.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
34. 34.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) icons with no labels
35. 35.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
36. 36.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Menu: 12 px
    Caption: 16 px
    Body text: 10 px
38. 38.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
39. 39.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) text that can grow
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Footer: 15 px
    Hint: 12 px
    Body text: 11 px
    Caption: 17 px

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