App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 618 · 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?
   Label: 24 px
   Title: 12 px
   Footer: 14 px
2. 2.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 18 px
   Menu: 15 px
   Hint: 19 px
   Footer: 24 px
4. 4.Which of these helps everyone use the app? (a) labels on every icon (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) icons with no labels (c) text that can grow (d) captions on videos
6. 6.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 21 px
   Hint: 12 px
   Body text: 12 px
8. 8.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) tiny tap areas
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 12 px
   Hint: 24 px
   Title: 18 px
   Label: 13 px
   Footer: 19 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Caption: 10 px
    Hint: 18 px
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 10 px
    Footer: 10 px
    Label: 12 px
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Footer: 14 px
    Label: 13 px
    Hint: 18 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Label: 19 px
    Body text: 24 px
15. 15.Which of these makes the app harder to use? (a) text that can grow (b) sudden loud sounds (c) labels on every icon (d) captions on videos
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
17. 17.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
19. 19.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) captions on videos
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 14 px
    Body text: 12 px
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) fast-flashing lights (d) colour as the only clue
22. 22.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) colour as the only clue (d) text that can grow
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
24. 24.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Body text: 9 px
    Caption: 26 px
    Title: 28 px (a) Title (b) Body text (c) Caption (d) Menu
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Caption: 16 px
    Title: 10 px
    Label: 24 px
28. 28.♿ A screen has 10 icon buttons. Only 7 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. Which text on this screen is too small?
    Title: 17 px
    Caption: 24 px
    Label: 11 px
    Body text: 24 px (a) Caption (b) Title (c) Body text (d) Label
30. 30.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) text that can grow (d) fast-flashing lights
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Hint: 20 px
    Footer: 18 px
32. 32.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
33. 33.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) icons with no labels
34. 34.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
35. 35.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Hint: 21 px
    Menu: 22 px
    Title: 16 px
    Label: 11 px (a) Label (b) Menu (c) Hint (d) Body text
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Menu: 21 px
    Caption: 28 px
    Hint: 20 px (a) Caption (b) Label (c) Hint (d) Menu
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Title: 23 px
    Footer: 22 px
    Body text: 12 px
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
40. 40.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow

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