App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 149 · 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) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) sudden loud sounds
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
3. 3.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 26 px
   Body text: 18 px
   Hint: 11 px (a) Body text (b) Caption (c) Hint
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Footer: 11 px
   Title: 20 px
   Menu: 22 px
   Label: 19 px (a) Title (b) Body text (c) Menu (d) Footer
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 22 px
   Body text: 11 px
   Caption: 20 px
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 23 px
   Body text: 24 px
   Hint: 19 px
   Menu: 18 px
   Caption: 17 px
8. 8.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
9. 9.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
11. 11.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Title: 16 px
    Footer: 10 px
    Hint: 28 px (a) Label (b) Hint (c) Footer (d) Title
13. 13.♿ 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
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Body text: 13 px
    Title: 21 px
    Footer: 11 px
    Label: 11 px
15. 15.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
16. 16.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
17. 17.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
18. 18.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
19. 19.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
20. 20.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
21. 21.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Footer: 11 px
    Label: 16 px (a) Title (b) Footer (c) Label
24. 24.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Caption: 13 px
    Body text: 17 px
    Footer: 19 px
    Hint: 13 px
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 12 px
    Title: 23 px
    Body text: 17 px (a) Label (b) Title (c) Body text
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Caption: 12 px
    Footer: 25 px (a) Title (b) Footer (c) Caption
29. 29.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) sudden loud sounds (d) captions on videos
30. 30.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (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?
    Label: 24 px
    Title: 10 px
    Menu: 19 px
    Caption: 16 px
    Hint: 14 px
32. 32.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) sudden loud sounds (d) fast-flashing lights
33. 33.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
34. 34.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
35. 35.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Menu: 10 px
    Title: 22 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Hint: 18 px
    Body text: 17 px
    Caption: 25 px
    Title: 16 px (a) Caption (b) Body text (c) Label (d) Hint
38. 38.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
40. 40.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True

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