App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 430 · 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 of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) sudden loud sounds
2. 2.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 24 px
   Caption: 10 px
   Hint: 23 px
   Footer: 14 px
4. 4.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
5. 5.♿ 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
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 14 px
   Title: 16 px
   Body text: 24 px (a) Body text (b) Caption (c) Title
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Label: 23 px
   Body text: 17 px
   Footer: 10 px
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 24 px
   Body text: 11 px
   Caption: 24 px (a) Body text (b) Caption (c) Footer
9. 9.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
10. 10.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) colour as the only clue (d) text that can grow
11. 11.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) colour as the only clue (d) icons with no labels
12. 12.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) strong colour contrast
13. 13.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
14. 14.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Title: 14 px
    Hint: 28 px
    Menu: 28 px (a) Menu (b) Footer (c) Title (d) Hint
16. 16.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) icons with no labels (d) labels on every icon
17. 17.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) strong colour contrast (d) captions on videos
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Hint: 16 px
    Title: 11 px
    Footer: 22 px
    Body text: 10 px
19. 19.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) text that can grow (d) tiny tap areas
20. 20.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Label: 11 px
    Menu: 23 px (a) Hint (b) Label (c) Menu
23. 23.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
25. 25.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
26. 26.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Title: 14 px
    Hint: 16 px
    Menu: 16 px
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Footer: 19 px
    Hint: 21 px
    Body text: 12 px (a) Hint (b) Title (c) Body text (d) Footer
29. 29.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
30. 30.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
31. 31.♿ A screen has 6 icon buttons. Only 1 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?
    Menu: 22 px
    Label: 17 px
    Footer: 17 px
    Body text: 22 px
33. 33.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) fast-flashing lights (d) sudden loud sounds
35. 35.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) labels on every icon (d) big touch targets
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Footer: 18 px
    Caption: 23 px
    Hint: 18 px
37. 37.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
38. 38.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Footer: 16 px
    Body text: 25 px (a) Hint (b) Body text (c) Footer
40. 40.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?

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