App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 615 · 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.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) icons with no labels
2. 2.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 10 px
   Caption: 14 px
   Menu: 10 px
   Label: 16 px
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
5. 5.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) fast-flashing lights (d) captions on videos
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 14 px
   Title: 23 px
   Body text: 18 px
   Hint: 25 px
   Footer: 19 px (a) Title (b) Body text (c) Caption (d) Hint
7. 7.♿ A screen has 9 icon buttons. Only 2 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. How many texts on this screen are too small?
   Hint: 15 px
   Menu: 20 px
   Footer: 21 px
   Title: 19 px
   Body text: 24 px
9. 9.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
10. 10.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Title: 11 px
    Menu: 16 px (a) Title (b) Body text (c) Menu
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Title: 25 px
    Caption: 25 px (a) Hint (b) Title (c) Caption
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Menu: 13 px
    Body text: 20 px
    Label: 20 px (a) Label (b) Menu (c) Body text (d) Footer
14. 14.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Menu: 23 px
    Label: 11 px (a) Menu (b) Title (c) Label
16. 16.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Footer: 18 px
    Title: 22 px
    Body text: 10 px (a) Body text (b) Footer (c) Hint (d) Title
18. 18.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) colour as the only clue
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Caption: 24 px
    Menu: 22 px
    Hint: 23 px
    Body text: 26 px (a) Menu (b) Footer (c) Hint (d) Caption
20. 20.♿ 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
21. 21.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
22. 22.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
23. 23.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
24. 24.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) colour as the only clue (d) strong colour contrast
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) tiny tap areas (d) big touch targets
27. 27.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Title: 20 px
    Hint: 14 px
29. 29.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Label: 9 px
    Title: 28 px (a) Title (b) Label (c) Caption
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Title: 21 px
    Caption: 12 px
    Menu: 17 px
    Body text: 20 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Body text: 19 px
    Menu: 19 px
    Label: 14 px (a) Menu (b) Footer (c) Label (d) Body text
33. 33.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
34. 34.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Footer: 13 px
    Menu: 16 px
    Hint: 23 px
    Body text: 19 px (a) Hint (b) Title (c) Footer (d) Menu
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Hint: 12 px
    Label: 26 px (a) Label (b) Menu (c) Hint
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) fast-flashing lights
38. 38.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) fast-flashing lights
39. 39.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Menu: 21 px
    Caption: 24 px

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