App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 489 · 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. Which text on this screen is too small?
   Footer: 10 px
   Hint: 19 px
   Label: 17 px (a) Label (b) Hint (c) Footer
2. 2.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
3. 3.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
4. 4.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a bright colour (d) a sound
5. 5.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 9 px
   Label: 21 px
   Footer: 20 px
   Title: 19 px
   Hint: 24 px (a) Footer (b) Menu (c) Title (d) Label
7. 7.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 22 px
   Menu: 9 px
   Title: 27 px
   Caption: 25 px
   Body text: 26 px (a) Caption (b) Footer (c) Menu (d) Title
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 23 px
   Menu: 22 px
   Footer: 19 px
   Hint: 20 px
   Label: 19 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Body text: 10 px
    Menu: 14 px
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) captions on videos
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Label: 23 px
    Title: 15 px
    Caption: 16 px
    Footer: 16 px
13. 13.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) big touch targets (d) colour as the only clue
14. 14.♿ A screen has 8 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: 27 px
    Body text: 18 px
    Label: 10 px
    Caption: 24 px (a) Footer (b) Caption (c) Label (d) Body text
16. 16.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Menu: 19 px
    Hint: 12 px
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Hint: 25 px
    Caption: 11 px
    Footer: 16 px (a) Hint (b) Footer (c) Caption (d) Title
19. 19.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) fast-flashing lights (d) strong colour contrast
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Caption: 19 px
    Label: 22 px (a) Caption (b) Label (c) Body text
21. 21.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) labels on every icon (d) strong colour contrast
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Menu: 14 px
    Title: 20 px
    Label: 23 px
25. 25.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) big touch targets (d) icons with no labels
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Menu: 12 px
    Title: 11 px
    Footer: 20 px
27. 27.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) captions on videos (d) tiny tap areas
28. 28.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) icons with no labels (d) fast-flashing lights
30. 30.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) icons with no labels (d) captions on videos
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Body text: 24 px
    Footer: 20 px
    Caption: 12 px (a) Caption (b) Footer (c) Body text (d) Menu
32. 32.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) strong colour contrast (d) tiny tap areas
33. 33.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) sudden loud sounds (d) text that can grow
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Body text: 21 px
    Footer: 11 px
37. 37.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
39. 39.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users

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