App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 527 · 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) everyone (b) nobody (c) only experts (d) only the coder
2. 2.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
3. 3.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) sudden loud sounds
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 26 px
   Label: 16 px
   Menu: 19 px
   Hint: 16 px
   Body text: 11 px (a) Body text (b) Menu (c) Caption (d) Label
5. 5.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
6. 6.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) icons with no labels (d) labels on every icon
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 28 px
   Body text: 19 px
   Menu: 22 px
   Hint: 23 px
   Footer: 14 px (a) Footer (b) Title (c) Body text (d) Menu
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 19 px
   Title: 12 px
   Body text: 22 px
   Footer: 16 px
   Hint: 20 px (a) Label (b) Body text (c) Title (d) Footer
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 17 px
   Label: 20 px
   Caption: 13 px (a) Title (b) Label (c) Caption
10. 10.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
12. 12.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
13. 13.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Caption: 16 px
    Hint: 14 px
    Label: 16 px (a) Hint (b) Label (c) Caption (d) Title
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Label: 9 px
    Hint: 16 px
    Footer: 16 px
    Body text: 28 px (a) Hint (b) Footer (c) Label (d) Title
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Menu: 16 px
    Caption: 9 px (a) Hint (b) Menu (c) Caption
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
18. 18.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Title: 19 px
    Caption: 27 px
    Menu: 18 px
    Footer: 13 px (a) Title (b) Footer (c) Caption (d) Label
20. 20.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Menu: 27 px
    Title: 17 px
    Footer: 22 px
    Label: 20 px (a) Hint (b) Footer (c) Menu (d) Title
22. 22.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Footer: 23 px
    Menu: 23 px (a) Hint (b) Menu (c) Footer
24. 24.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) sudden loud sounds (d) tiny tap areas
25. 25.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) sudden loud sounds
26. 26.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
27. 27.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) tiny tap areas (d) icons with no labels
28. 28.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) fast typists (d) colour-blind users
29. 29.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
30. 30.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Caption: 9 px
    Footer: 24 px (a) Footer (b) Caption (c) Title
32. 32.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Label: 25 px
    Title: 9 px (a) Label (b) Title (c) Footer
35. 35.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
36. 36.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) icons with no labels
37. 37.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) icons with no labels (d) labels on every icon
38. 38.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
39. 39.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) strong colour contrast
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Footer: 21 px
    Label: 20 px
    Hint: 19 px
    Menu: 25 px (a) Footer (b) Label (c) Body text (d) Hint

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