App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 532 · 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.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 20 px
   Hint: 19 px
   Body text: 15 px
   Menu: 10 px
   Label: 18 px
3. 3.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
4. 4.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) tiny tap areas
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 10 px
   Hint: 23 px
   Footer: 20 px (a) Hint (b) Footer (c) Body text
7. 7.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
8. 8.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 21 px
   Title: 10 px
   Body text: 20 px (a) Title (b) Menu (c) Body text
10. 10.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
11. 11.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
12. 12.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
13. 13.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Caption: 17 px
    Title: 28 px
    Menu: 17 px (a) Caption (b) Title (c) Menu (d) Hint
15. 15.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) big touch targets (d) captions on videos
17. 17.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
18. 18.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
19. 19.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Title: 26 px
    Body text: 21 px
    Label: 19 px
    Caption: 27 px (a) Body text (b) Menu (c) Label (d) Title
21. 21.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
22. 22.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Hint: 20 px
    Footer: 19 px
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Footer: 15 px
    Caption: 11 px
    Hint: 11 px
    Body text: 15 px
25. 25.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
26. 26.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
27. 27.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
30. 30.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) text that can grow (d) icons with no labels
31. 31.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) big touch targets (d) strong colour contrast
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) captions on videos (d) sudden loud sounds
33. 33.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Title: 11 px
    Footer: 23 px
    Hint: 10 px
    Menu: 18 px
37. 37.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
38. 38.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) strong colour contrast (d) icons with no labels
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Title: 23 px
    Footer: 17 px
    Caption: 10 px (a) Footer (b) Caption (c) Hint (d) Title

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