App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 80 · 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 helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) colour as the only clue (d) tiny tap areas
2. 2.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
3. 3.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
4. 4.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) text that can grow (d) big touch targets
5. 5.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
6. 6.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) captions on videos (d) colour as the only clue
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 20 px
   Body text: 20 px
   Title: 22 px
   Label: 9 px (a) Label (b) Body text (c) Title (d) Menu
8. 8.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
10. 10.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
12. 12.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) labels on every icon
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Label: 10 px
    Hint: 21 px
    Footer: 17 px
    Caption: 17 px (a) Hint (b) Label (c) Title (d) Footer
14. 14.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
15. 15.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
16. 16.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
17. 17.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
18. 18.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
19. 19.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) text that can grow (d) labels on every icon
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Hint: 23 px
    Footer: 24 px
    Caption: 16 px
21. 21.♿ 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
22. 22.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Body text: 25 px
    Title: 26 px
    Footer: 19 px (a) Hint (b) Footer (c) Title (d) Body text
24. 24.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) fast-flashing lights
25. 25.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) sudden loud sounds (d) tiny tap areas
26. 26.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
27. 27.♿ A screen has 6 icon buttons. Only 3 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) True (b) False
29. 29.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 14 px
    Footer: 26 px
    Label: 17 px (a) Caption (b) Footer (c) Label
33. 33.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
34. 34.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 17 px
    Title: 14 px
    Hint: 18 px
    Footer: 16 px
    Menu: 15 px
36. 36.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
37. 37.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
38. 38.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) colour as the only clue (d) captions on videos
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Title: 23 px
    Label: 17 px
    Hint: 18 px
    Menu: 10 px

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