App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 311 · 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: 11 px
   Footer: 13 px
   Body text: 17 px
   Title: 13 px
2. 2.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
3. 3.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) big touch targets (d) colour as the only clue
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 19 px
   Body text: 22 px
   Title: 22 px
5. 5.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) big touch targets
6. 6.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
7. 7.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
8. 8.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 13 px
   Caption: 21 px
   Footer: 27 px
   Hint: 21 px
   Body text: 21 px (a) Footer (b) Hint (c) Caption (d) Label
10. 10.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) colour as the only clue
11. 11.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
13. 13.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
14. 14.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
15. 15.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) fast-flashing lights (d) labels on every icon
16. 16.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Footer: 24 px
    Body text: 11 px
    Hint: 18 px
    Caption: 27 px (a) Footer (b) Body text (c) Title (d) Hint
18. 18.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) text that can grow (d) labels on every icon
19. 19.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
20. 20.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Title: 10 px
    Body text: 17 px
    Hint: 20 px
22. 22.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
23. 23.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) strong colour contrast
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Label: 21 px
    Menu: 26 px
    Body text: 14 px
    Hint: 24 px (a) Menu (b) Title (c) Label (d) Body text
25. 25.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) tiny tap areas (d) icons with no labels
27. 27.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
28. 28.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Hint: 24 px
    Title: 11 px
    Label: 27 px
    Caption: 23 px (a) Label (b) Footer (c) Hint (d) Title
30. 30.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Title: 21 px
    Footer: 10 px
32. 32.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
33. 33.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Body text: 14 px
    Hint: 15 px
    Footer: 23 px
35. 35.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) text that can grow (d) captions on videos
36. 36.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) icons with no labels
37. 37.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
38. 38.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
39. 39.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Body text: 14 px
    Caption: 24 px

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