App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 205 · 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?
   Menu: 14 px
   Title: 12 px
   Caption: 11 px
2. 2.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) text that can grow (d) labels on every icon
5. 5.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 16 px
   Footer: 10 px
   Label: 22 px
   Menu: 16 px (a) Label (b) Menu (c) Footer (d) Hint
7. 7.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
8. 8.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) text that can grow (d) captions on videos
9. 9.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) icons with no labels (d) sudden loud sounds
10. 10.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
11. 11.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
12. 12.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
13. 13.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 17 px
    Label: 21 px
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Hint: 23 px
    Body text: 14 px
    Menu: 11 px
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Menu: 23 px
    Footer: 12 px
17. 17.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
18. 18.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) labels on every icon (d) strong colour contrast
19. 19.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
20. 20.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
21. 21.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
23. 23.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
24. 24.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) big touch targets (d) colour as the only clue
26. 26.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) captions on videos (d) fast-flashing lights
27. 27.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Menu: 11 px
    Footer: 16 px
29. 29.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
30. 30.♿ A screen has 5 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. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 13 px
    Hint: 17 px
    Label: 22 px
32. 32.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Menu: 21 px
    Label: 13 px (a) Menu (b) Label (c) Hint
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 23 px
    Title: 20 px
    Menu: 9 px (a) Caption (b) Menu (c) Title
35. 35.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Menu: 28 px
    Footer: 18 px
    Label: 12 px (a) Footer (b) Menu (c) Label (d) Caption
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.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
39. 39.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) strong colour contrast (d) colour as the only clue
40. 40.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True

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