App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 297 · 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.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
3. 3.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 17 px
   Footer: 11 px
   Body text: 17 px
   Label: 16 px
5. 5.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) strong colour contrast
8. 8.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
9. 9.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Menu: 16 px
    Title: 27 px
    Caption: 9 px
    Label: 16 px (a) Menu (b) Title (c) Hint (d) Caption
11. 11.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Body text: 10 px
    Title: 10 px
    Label: 19 px
13. 13.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
15. 15.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
16. 16.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Label: 12 px
    Title: 27 px
    Menu: 21 px
    Caption: 28 px (a) Menu (b) Title (c) Footer (d) Label
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Hint: 13 px
    Caption: 18 px
    Footer: 28 px
    Menu: 25 px (a) Caption (b) Hint (c) Footer (d) Title
19. 19.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) sudden loud sounds (d) strong colour contrast
20. 20.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Hint: 9 px
    Label: 16 px (a) Label (b) Body text (c) Hint
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Caption: 25 px
    Body text: 28 px (a) Body text (b) Caption (c) Title
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Body text: 14 px
    Label: 28 px
    Title: 23 px
    Hint: 22 px (a) Title (b) Label (c) Body text (d) Menu
24. 24.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
25. 25.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Label: 23 px
    Footer: 24 px
    Caption: 21 px
    Title: 14 px (a) Title (b) Label (c) Footer (d) Body text
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Body text: 9 px
    Hint: 18 px (a) Body text (b) Hint (c) Title
28. 28.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) colour as the only clue
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 21 px
    Body text: 15 px
    Title: 21 px
    Footer: 24 px
30. 30.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
31. 31.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
32. 32.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) tiny tap areas
33. 33.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Title: 18 px
    Body text: 16 px
    Menu: 12 px
    Footer: 17 px
35. 35.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) labels on every icon (d) tiny tap areas
36. 36.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) text that can grow (d) icons with no labels
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) icons with no labels (d) strong colour contrast
38. 38.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Menu: 19 px
    Caption: 16 px
    Footer: 20 px (a) Body text (b) Menu (c) Footer (d) Caption
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Caption: 18 px
    Body text: 10 px
    Hint: 18 px

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