App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 316 · 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.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
2. 2.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 12 px
   Label: 18 px
   Body text: 20 px
   Footer: 18 px
4. 4.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
5. 5.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) labels on every icon (d) captions on videos
6. 6.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) text that can grow
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 19 px
   Title: 23 px
   Menu: 23 px
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 14 px
   Hint: 11 px
   Caption: 12 px
   Title: 20 px
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 14 px
   Label: 12 px
   Hint: 22 px
   Menu: 22 px
10. 10.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) captions on videos
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Hint: 12 px
    Footer: 18 px
    Label: 22 px
    Menu: 22 px (a) Title (b) Label (c) Hint (d) Footer
13. 13.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
14. 14.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
15. 15.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
16. 16.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
17. 17.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
18. 18.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
19. 19.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Label: 12 px
    Caption: 24 px
    Hint: 14 px
21. 21.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
22. 22.♿ A screen has 11 icon buttons. Only 3 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: 17 px
    Hint: 10 px
    Caption: 18 px
    Footer: 26 px
    Label: 23 px (a) Hint (b) Caption (c) Title (d) Footer
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Label: 15 px
    Title: 14 px
    Hint: 15 px
    Menu: 15 px
25. 25.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
26. 26.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Label: 15 px
    Caption: 12 px
    Body text: 23 px
28. 28.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
29. 29.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) colour as the only clue (d) captions on videos
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
31. 31.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
32. 32.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) text that can grow (d) icons with no labels
34. 34.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
36. 36.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) strong colour contrast (d) colour as the only clue
37. 37.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
38. 38.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) colour as the only clue
40. 40.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False

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