App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 820 · 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. Which text on this screen is too small?
   Footer: 28 px
   Body text: 14 px
   Hint: 26 px (a) Footer (b) Body text (c) Hint
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 18 px
   Footer: 24 px
   Label: 21 px
3. 3.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) icons with no labels
4. 4.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
5. 5.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 13 px
   Body text: 25 px
   Caption: 22 px (a) Body text (b) Caption (c) Label
7. 7.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) captions on videos (d) fast-flashing lights
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 13 px
   Label: 12 px
   Menu: 13 px
   Footer: 14 px
10. 10.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
12. 12.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) labels on every icon (d) captions on videos
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) big touch targets
14. 14.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) text that can grow
15. 15.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) icons with no labels (d) strong colour contrast
17. 17.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Title: 12 px
    Body text: 18 px
    Hint: 24 px
19. 19.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Title: 13 px
    Body text: 12 px
    Caption: 21 px
21. 21.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Caption: 17 px
    Label: 10 px (a) Caption (b) Label (c) Body text
23. 23.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) fast-flashing lights (d) labels on every icon
26. 26.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) labels on every icon (d) captions on videos
27. 27.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
28. 28.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
29. 29.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Body text: 26 px
    Hint: 16 px
    Title: 26 px
    Menu: 11 px (a) Footer (b) Hint (c) Body text (d) Menu
31. 31.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Label: 20 px
    Title: 28 px (a) Menu (b) Title (c) Label
33. 33.♿ 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
34. 34.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) tiny tap areas (d) big touch targets
37. 37.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
38. 38.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) big touch targets (d) fast-flashing lights
39. 39.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
40. 40.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students