App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 680 · 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: colour as the only clue? (a) helps everyone (b) makes it harder
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 26 px
   Body text: 13 px
   Title: 27 px (a) Body text (b) Caption (c) Title
3. 3.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) tiny tap areas
4. 4.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) big touch targets (d) captions on videos
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Body text: 11 px
   Footer: 25 px
   Menu: 22 px (a) Title (b) Footer (c) Menu (d) Body text
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
7. 7.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
8. 8.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) text that can grow (d) big touch targets
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 9 px
   Label: 17 px
   Footer: 24 px (a) Label (b) Footer (c) Body text
10. 10.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
11. 11.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Caption: 17 px
    Label: 26 px
    Footer: 11 px (a) Caption (b) Menu (c) Footer (d) Label
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Title: 22 px
    Caption: 10 px
    Menu: 23 px
    Footer: 24 px
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Caption: 27 px
    Title: 20 px
    Hint: 25 px
    Label: 14 px (a) Label (b) Menu (c) Caption (d) Title
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Menu: 28 px
    Footer: 11 px (a) Footer (b) Body text (c) Menu
16. 16.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) big touch targets (d) sudden loud sounds
18. 18.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) big touch targets
19. 19.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) fast-flashing lights (d) strong colour contrast
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Body text: 10 px
    Title: 19 px
    Footer: 16 px
    Menu: 16 px (a) Hint (b) Title (c) Footer (d) Body text
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Body text: 21 px
    Footer: 20 px
22. 22.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) icons with no labels (d) captions on videos
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Hint: 28 px
    Menu: 23 px
    Title: 27 px
    Caption: 14 px (a) Body text (b) Caption (c) Hint (d) Menu
25. 25.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) captions on videos
26. 26.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) colour as the only clue
28. 28.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) text that can grow (d) sudden loud sounds
29. 29.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
30. 30.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Body text: 24 px
    Hint: 10 px (a) Title (b) Body text (c) Hint
32. 32.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) labels on every icon (d) tiny tap areas
33. 33.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Footer: 13 px
    Body text: 21 px (a) Caption (b) Body text (c) Footer
36. 36.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) sudden loud sounds (d) fast-flashing lights
37. 37.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Menu: 19 px
    Caption: 11 px
    Body text: 12 px
    Footer: 13 px
39. 39.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
40. 40.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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