App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 573 · 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.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 10 px
   Caption: 11 px
   Body text: 12 px
3. 3.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
4. 4.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) labels on every icon (d) icons with no labels
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 17 px
   Title: 18 px
   Label: 24 px
8. 8.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
10. 10.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
11. 11.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Hint: 17 px
    Caption: 11 px
    Body text: 20 px (a) Title (b) Caption (c) Body text (d) Hint
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Body text: 26 px
    Hint: 26 px (a) Hint (b) Body text (c) Title
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Title: 22 px
    Label: 9 px (a) Label (b) Hint (c) Title
15. 15.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
16. 16.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Menu: 22 px
    Footer: 13 px
    Hint: 20 px
    Title: 28 px (a) Body text (b) Hint (c) Menu (d) Footer
18. 18.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Footer: 10 px
    Title: 11 px
    Hint: 17 px
    Label: 24 px
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) text that can grow (d) sudden loud sounds
22. 22.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
23. 23.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
24. 24.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
25. 25.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
27. 27.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
28. 28.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) labels on every icon (d) captions on videos
29. 29.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) colour as the only clue (d) captions on videos
30. 30.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
31. 31.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Menu: 18 px
    Hint: 22 px
    Title: 12 px
33. 33.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
34. 34.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
35. 35.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) labels on every icon (d) icons with no labels
36. 36.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) labels on every icon
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Hint: 11 px
    Caption: 17 px
    Menu: 23 px (a) Hint (b) Caption (c) Footer (d) Menu
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Menu: 19 px
    Hint: 19 px
    Caption: 22 px
    Label: 26 px (a) Menu (b) Hint (c) Title (d) Caption
39. 39.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) labels on every icon (d) big touch targets
40. 40.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) icons with no labels (d) sudden loud sounds

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