App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 102 · 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.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) strong colour contrast (d) big touch targets
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
4. 4.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) labels on every icon
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 21 px
   Menu: 19 px
   Label: 23 px
   Caption: 10 px
6. 6.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
7. 7.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
8. 8.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) big touch targets (d) captions on videos
9. 9.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Label: 12 px
    Footer: 25 px
    Title: 17 px
    Body text: 26 px (a) Label (b) Footer (c) Title (d) Caption
11. 11.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) sudden loud sounds (d) captions on videos
12. 12.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
13. 13.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Menu: 12 px
    Hint: 16 px
    Label: 16 px (a) Hint (b) Label (c) Body text (d) Menu
15. 15.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
16. 16.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
17. 17.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) text that can grow
18. 18.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) tiny tap areas (d) fast-flashing lights
19. 19.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) captions on videos (d) big touch targets
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Title: 17 px
    Footer: 22 px
    Menu: 19 px
    Hint: 11 px (a) Footer (b) Body text (c) Hint (d) Title
22. 22.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) big touch targets (d) labels on every icon
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Caption: 16 px
    Title: 26 px
    Label: 9 px (a) Body text (b) Label (c) Title (d) Caption
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Menu: 9 px
    Title: 26 px
    Hint: 22 px (a) Title (b) Hint (c) Body text (d) Menu
25. 25.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
27. 27.♿ A screen has 6 icon buttons. Only 1 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?
    Title: 17 px
    Label: 19 px
    Caption: 14 px (a) Label (b) Caption (c) Title
29. 29.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
30. 30.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Hint: 23 px
    Footer: 22 px
32. 32.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) text that can grow (d) icons with no labels
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Menu: 11 px
    Label: 12 px
    Footer: 13 px
    Caption: 10 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Caption: 27 px
    Footer: 19 px
    Title: 19 px (a) Footer (b) Title (c) Caption (d) Menu
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Label: 22 px
    Title: 24 px
    Footer: 9 px (a) Footer (b) Label (c) Title (d) Hint
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Menu: 19 px
    Caption: 10 px
    Title: 17 px (a) Hint (b) Menu (c) Caption (d) Title
37. 37.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
38. 38.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
39. 39.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 24 px
    Menu: 12 px
    Title: 10 px
    Hint: 12 px
    Footer: 20 px

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