App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 246 · 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: captions on videos? (a) helps everyone (b) makes it harder
2. 2.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) strong colour contrast (d) captions on videos
4. 4.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) captions on videos (d) labels on every icon
5. 5.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 23 px
   Title: 24 px
   Body text: 10 px
8. 8.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) icons with no labels (d) labels on every icon
9. 9.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
10. 10.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
11. 11.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) strong colour contrast
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
13. 13.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Footer: 16 px
    Menu: 19 px
    Caption: 11 px
16. 16.Which of these helps everyone use the app? (a) fast-flashing lights (b) strong colour contrast (c) tiny tap areas (d) icons with no labels
17. 17.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
18. 18.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) sudden loud sounds
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Hint: 24 px
    Caption: 20 px
20. 20.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Hint: 13 px
    Menu: 17 px
    Footer: 19 px
23. 23.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Hint: 24 px
    Title: 13 px
    Footer: 10 px
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Label: 10 px
    Menu: 13 px
26. 26.♿ 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
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Label: 19 px
    Hint: 16 px
    Title: 11 px (a) Hint (b) Label (c) Title (d) Footer
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Menu: 17 px
    Body text: 11 px (a) Title (b) Body text (c) Menu
29. 29.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) text that can grow (d) fast-flashing lights
32. 32.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Body text: 16 px
    Title: 25 px
    Hint: 18 px
    Footer: 25 px (a) Body text (b) Caption (c) Hint (d) Title
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Hint: 17 px
    Title: 27 px (a) Title (b) Caption (c) Hint
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Title: 17 px
    Body text: 25 px
    Label: 20 px (a) Label (b) Menu (c) Body text (d) Title
36. 36.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) big touch targets
37. 37.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) captions on videos (d) sudden loud sounds
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Footer: 10 px
    Label: 20 px
    Body text: 28 px (a) Label (b) Caption (c) Body text (d) Footer
39. 39.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
40. 40.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone

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