App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 375 · 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?
   Body text: 12 px
   Menu: 20 px
   Label: 20 px
   Hint: 17 px
   Caption: 19 px
2. 2.♿ 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
3. 3.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 22 px
   Caption: 15 px
   Label: 22 px
   Body text: 21 px
7. 7.♿ A screen has 9 icon buttons. Only 5 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?
   Menu: 26 px
   Hint: 23 px
   Label: 16 px
   Footer: 9 px
   Title: 24 px (a) Menu (b) Hint (c) Label (d) Footer
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Menu: 26 px
   Title: 18 px (a) Caption (b) Menu (c) Title
10. 10.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) tiny tap areas (d) fast-flashing lights
11. 11.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
12. 12.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Hint: 19 px
    Body text: 17 px (a) Hint (b) Body text (c) Title
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Title: 24 px
    Menu: 26 px
    Label: 25 px
    Caption: 9 px (a) Hint (b) Caption (c) Title (d) Menu
16. 16.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Hint: 27 px
    Caption: 20 px
    Menu: 27 px
    Body text: 27 px (a) Footer (b) Hint (c) Caption (d) Menu
18. 18.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
19. 19.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Menu: 15 px
    Body text: 23 px
21. 21.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Hint: 11 px
    Label: 24 px
    Menu: 24 px
24. 24.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
25. 25.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Footer: 10 px
    Label: 24 px
    Title: 17 px
27. 27.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
28. 28.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Hint: 15 px
    Label: 18 px
31. 31.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) colour as the only clue (d) captions on videos
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Label: 11 px
    Caption: 21 px
    Footer: 22 px (a) Footer (b) Caption (c) Title (d) Label
33. 33.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
34. 34.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Label: 28 px
    Hint: 12 px (a) Footer (b) Hint (c) Label
36. 36.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) colour as the only clue (d) icons with no labels
37. 37.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Hint: 18 px
    Caption: 14 px
    Body text: 15 px
39. 39.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
40. 40.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder

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