App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 139 · 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: labels on every icon? (a) helps everyone (b) makes it harder
2. 2.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) fast-flashing lights (d) colour as the only clue
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 19 px
   Body text: 28 px
   Footer: 11 px
   Title: 21 px (a) Title (b) Body text (c) Hint (d) Footer
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) big touch targets (d) labels on every icon
6. 6.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Title: 27 px
   Menu: 20 px
   Hint: 16 px
   Footer: 22 px (a) Hint (b) Caption (c) Title (d) Menu
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 18 px
   Hint: 23 px
   Title: 13 px (a) Hint (b) Label (c) Title
9. 9.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Body text: 17 px
    Label: 21 px
    Menu: 14 px
11. 11.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) icons with no labels (d) fast-flashing lights
12. 12.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Menu: 15 px
    Hint: 16 px
    Title: 13 px
    Label: 13 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Menu: 20 px
    Caption: 13 px
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Hint: 16 px
    Footer: 19 px (a) Label (b) Hint (c) Footer
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.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
18. 18.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
20. 20.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
21. 21.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Title: 27 px
    Label: 16 px
    Footer: 16 px (a) Menu (b) Label (c) Title (d) Footer
23. 23.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Footer: 21 px
    Body text: 12 px
    Hint: 20 px
    Caption: 20 px
25. 25.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
26. 26.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
27. 27.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) text that can grow (d) colour as the only clue
28. 28.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) big touch targets (d) sudden loud sounds
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Footer: 19 px
    Title: 23 px
    Caption: 15 px
31. 31.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) icons with no labels (d) big touch targets
33. 33.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Label: 19 px
    Hint: 22 px
    Caption: 28 px
    Title: 28 px (a) Hint (b) Label (c) Caption (d) Body text
35. 35.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
36. 36.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
37. 37.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Menu: 12 px
    Title: 14 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Label: 19 px
    Title: 11 px
    Body text: 27 px (a) Body text (b) Menu (c) Title (d) Label
40. 40.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone

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