App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 488 · 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) icons with no labels (b) captions on videos (c) labels on every icon (d) big touch targets
2. 2.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 16 px
   Title: 20 px
   Menu: 27 px
   Body text: 11 px
   Label: 17 px (a) Title (b) Menu (c) Body text (d) Hint
4. 4.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) tiny tap areas (d) sudden loud sounds
5. 5.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) icons with no labels (d) captions on videos
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 24 px
   Title: 12 px
   Label: 17 px
7. 7.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
9. 9.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
10. 10.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
11. 11.♿ A screen has 7 icon buttons. Only 5 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: text that can grow? (a) helps everyone (b) makes it harder
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
14. 14.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
15. 15.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
16. 16.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
17. 17.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
18. 18.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) strong colour contrast (d) colour as the only clue
19. 19.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
20. 20.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) text that can grow (d) strong colour contrast
22. 22.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
24. 24.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
25. 25.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Body text: 18 px
    Hint: 23 px (a) Body text (b) Hint (c) Title
27. 27.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Caption: 22 px
    Body text: 27 px (a) Hint (b) Body text (c) Caption
29. 29.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) captions on videos (d) colour as the only clue
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Body text: 18 px
    Label: 12 px
    Menu: 11 px
31. 31.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Footer: 11 px
    Hint: 17 px
    Title: 17 px
    Label: 10 px
35. 35.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Caption: 22 px
    Footer: 9 px
    Title: 28 px (a) Footer (b) Title (c) Menu (d) Caption
37. 37.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) strong colour contrast
38. 38.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
39. 39.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Caption: 11 px
    Hint: 20 px

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