App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 42 · 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. How many texts on this screen are too small?
   Menu: 15 px
   Title: 12 px
   Body text: 12 px
2. 2.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 24 px
   Title: 10 px
   Caption: 11 px
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 14 px
   Menu: 19 px
   Body text: 23 px (a) Body text (b) Footer (c) Menu
6. 6.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Hint: 16 px
   Body text: 25 px
   Label: 19 px (a) Hint (b) Body text (c) Label (d) Caption
8. 8.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 22 px
   Label: 21 px
   Caption: 24 px
   Menu: 12 px
   Body text: 19 px
10. 10.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
11. 11.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Hint: 17 px
    Footer: 13 px (a) Hint (b) Footer (c) Body text
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Menu: 26 px
    Body text: 14 px (a) Body text (b) Menu (c) Title
14. 14.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
15. 15.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
16. 16.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
17. 17.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) labels on every icon
18. 18.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
19. 19.Which of these makes the app harder to use? (a) big touch targets (b) sudden loud sounds (c) text that can grow (d) captions on videos
20. 20.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
22. 22.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) labels on every icon
23. 23.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Title: 21 px
    Label: 10 px
    Hint: 18 px
    Menu: 23 px (a) Title (b) Label (c) Hint (d) Footer
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Caption: 26 px
    Footer: 28 px
    Hint: 20 px (a) Footer (b) Hint (c) Menu (d) Caption
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Footer: 18 px
    Title: 12 px
    Label: 24 px
    Menu: 21 px (a) Hint (b) Label (c) Title (d) Footer
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Body text: 17 px
    Label: 12 px (a) Footer (b) Body text (c) Label
28. 28.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Caption: 20 px
    Hint: 19 px
30. 30.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Label: 20 px
    Menu: 19 px
32. 32.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Title: 23 px
    Hint: 11 px
    Footer: 24 px
    Menu: 27 px (a) Caption (b) Title (c) Hint (d) Footer
35. 35.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) tiny tap areas
36. 36.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
38. 38.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Body text: 25 px
    Hint: 25 px
    Menu: 21 px
    Footer: 14 px (a) Body text (b) Title (c) Footer (d) Hint
40. 40.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder

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