App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 148 · 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.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 10 px
   Title: 23 px
   Menu: 10 px
3. 3.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
4. 4.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) big touch targets (d) icons with no labels
5. 5.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
6. 6.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) icons with no labels (d) tiny tap areas
7. 7.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) colour as the only clue (d) text that can grow
8. 8.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) fast-flashing lights (d) sudden loud sounds
9. 9.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) fast-flashing lights (d) sudden loud sounds
10. 10.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
11. 11.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Hint: 15 px
    Menu: 14 px
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Title: 23 px
    Body text: 24 px
    Hint: 16 px
    Caption: 9 px (a) Label (b) Caption (c) Body text (d) Title
14. 14.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) sudden loud sounds (d) icons with no labels
15. 15.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Title: 13 px
    Label: 19 px
    Caption: 27 px
    Footer: 16 px (a) Label (b) Body text (c) Caption (d) Title
17. 17.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
18. 18.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Footer: 14 px
    Caption: 13 px
20. 20.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
22. 22.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
25. 25.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) text that can grow (d) big touch targets
26. 26.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
27. 27.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) tiny tap areas (d) big touch targets
28. 28.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) the server (d) fast typists
29. 29.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
30. 30.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) text that can grow (d) captions on videos
32. 32.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) fast-flashing lights (d) colour as the only clue
33. 33.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Title: 11 px
    Label: 16 px
    Hint: 19 px (a) Label (b) Hint (c) Title (d) Footer
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Body text: 12 px
    Menu: 22 px
    Caption: 17 px
36. 36.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) fast-flashing lights
37. 37.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Label: 25 px
    Title: 13 px (a) Label (b) Title (c) Hint
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Body text: 24 px
    Caption: 27 px
    Menu: 9 px (a) Title (b) Caption (c) Body text (d) Menu
40. 40.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone

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