App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 826 · 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 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
3. 3.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 19 px
   Caption: 10 px
   Footer: 23 px
   Menu: 10 px
   Body text: 15 px
5. 5.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 28 px
   Footer: 14 px
   Label: 17 px
   Caption: 25 px (a) Caption (b) Menu (c) Footer (d) Label
7. 7.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) text that can grow (d) strong colour contrast
8. 8.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
9. 9.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Caption: 12 px
    Hint: 16 px
11. 11.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
12. 12.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) icons with no labels (d) sudden loud sounds
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Menu: 18 px
    Body text: 14 px (a) Hint (b) Menu (c) Body text
14. 14.Which of these helps everyone use the app? (a) sudden loud sounds (b) text that can grow (c) icons with no labels (d) tiny tap areas
15. 15.♿ 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
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Menu: 12 px
    Hint: 27 px (a) Hint (b) Body text (c) Menu
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Footer: 13 px
    Hint: 16 px
    Body text: 28 px
    Menu: 24 px (a) Hint (b) Title (c) Body text (d) Footer
18. 18.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
19. 19.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) sudden loud sounds (d) colour as the only clue
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Caption: 10 px
    Footer: 14 px
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Footer: 22 px
    Caption: 22 px
    Hint: 12 px
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Title: 23 px
    Caption: 27 px
    Body text: 24 px (a) Body text (b) Caption (c) Menu (d) Title
23. 23.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
24. 24.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
25. 25.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
26. 26.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
28. 28.Which of these makes the app harder to use? (a) colour as the only clue (b) big touch targets (c) text that can grow (d) captions on videos
29. 29.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Body text: 28 px
    Caption: 19 px
    Menu: 19 px (a) Footer (b) Menu (c) Body text (d) Caption
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Body text: 23 px
    Title: 27 px
    Label: 26 px
    Menu: 13 px (a) Body text (b) Menu (c) Title (d) Hint
32. 32.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Title: 23 px
    Caption: 17 px
    Footer: 17 px
    Menu: 20 px (a) Label (b) Footer (c) Title (d) Caption
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) colour as the only clue
35. 35.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
36. 36.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) labels on every icon (d) big touch targets
38. 38.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) strong colour contrast (d) colour as the only clue
39. 39.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
40. 40.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True

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