App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 429 · 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 of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) labels on every icon (d) captions on videos
2. 2.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) icons with no labels
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
4. 4.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
5. 5.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
6. 6.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) strong colour contrast
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 16 px
   Footer: 23 px
   Hint: 13 px
8. 8.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
9. 9.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Label: 23 px
    Footer: 10 px
    Body text: 17 px
11. 11.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
12. 12.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) icons with no labels
13. 13.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) tiny tap areas (d) fast-flashing lights
14. 14.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Title: 19 px
    Hint: 27 px
    Caption: 13 px
    Body text: 19 px (a) Title (b) Caption (c) Menu (d) Hint
16. 16.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
17. 17.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
18. 18.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a bright colour (d) a sound
19. 19.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) sudden loud sounds (d) tiny tap areas
20. 20.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Hint: 22 px
    Body text: 23 px
    Title: 12 px
    Menu: 19 px
22. 22.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) sudden loud sounds (d) text that can grow
23. 23.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) strong colour contrast (d) text that can grow
25. 25.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
26. 26.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
27. 27.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) sudden loud sounds (d) labels on every icon
29. 29.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
30. 30.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) captions on videos
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) strong colour contrast (d) colour as the only clue
34. 34.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) captions on videos (d) text that can grow
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Hint: 19 px
    Title: 17 px
    Footer: 20 px (a) Hint (b) Footer (c) Title (d) Menu
36. 36.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Hint: 20 px
    Title: 17 px
    Label: 11 px (a) Hint (b) Footer (c) Label (d) Title
38. 38.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Hint: 19 px
    Title: 21 px
    Body text: 21 px
    Footer: 20 px
40. 40.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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