App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 68 · 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 is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) big touch targets (d) captions on videos
2. 2.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) strong colour contrast (d) big touch targets
3. 3.♿ 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
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 19 px
   Menu: 19 px
   Body text: 10 px
5. 5.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
6. 6.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 23 px
   Body text: 13 px
   Footer: 17 px
   Label: 20 px (a) Body text (b) Caption (c) Label (d) Footer
8. 8.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
9. 9.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
10. 10.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
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.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) fast-flashing lights (d) big touch targets
13. 13.Which of these helps everyone use the app? (a) big touch targets (b) tiny tap areas (c) fast-flashing lights (d) sudden loud sounds
14. 14.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
15. 15.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Footer: 19 px
    Title: 25 px
    Body text: 24 px (a) Menu (b) Title (c) Footer (d) Body text
17. 17.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) big touch targets (d) tiny tap areas
18. 18.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
19. 19.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
21. 21.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
22. 22.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Hint: 18 px
    Caption: 12 px
    Label: 23 px
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Caption: 28 px
    Title: 20 px (a) Caption (b) Title (c) Footer
25. 25.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Label: 11 px
    Menu: 21 px
27. 27.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Label: 18 px
    Title: 28 px
    Body text: 21 px
    Caption: 14 px (a) Caption (b) Label (c) Hint (d) Title
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Label: 9 px
    Caption: 21 px (a) Caption (b) Label (c) Hint
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Title: 18 px
    Footer: 28 px
    Body text: 17 px (a) Title (b) Footer (c) Body text (d) Menu
31. 31.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
32. 32.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
33. 33.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
34. 34.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) strong colour contrast (d) sudden loud sounds
35. 35.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) sudden loud sounds
36. 36.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
37. 37.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these makes the app harder to use? (a) text that can grow (b) tiny tap areas (c) captions on videos (d) labels on every icon
39. 39.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) icons with no labels (d) labels on every icon

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