App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 237 · 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) icons with no labels (b) colour as the only clue (c) fast-flashing lights (d) strong colour contrast
2. 2.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
3. 3.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
5. 5.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) sudden loud sounds
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
7. 7.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Caption: 14 px
   Title: 15 px
   Label: 20 px
   Footer: 10 px
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Title: 12 px
    Menu: 14 px
    Body text: 20 px
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Body text: 28 px
    Footer: 16 px
    Menu: 19 px
    Caption: 27 px (a) Menu (b) Body text (c) Footer (d) Label
12. 12.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
13. 13.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Footer: 17 px
    Title: 13 px
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
16. 16.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) captions on videos
17. 17.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Label: 25 px
    Title: 10 px (a) Label (b) Body text (c) Title
19. 19.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Title: 12 px
    Body text: 20 px (a) Body text (b) Title (c) Footer
21. 21.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) big touch targets (d) colour as the only clue
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Footer: 18 px
    Body text: 28 px
    Menu: 27 px
    Title: 19 px (a) Body text (b) Menu (c) Label (d) Footer
24. 24.🔍 Which is the odd one out? (a) fast-flashing lights (b) captions on videos (c) tiny tap areas (d) colour as the only clue
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
26. 26.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
27. 27.♿ A screen has 10 icon buttons. Only 2 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?
    Body text: 21 px
    Footer: 19 px
    Menu: 18 px
    Label: 14 px
    Title: 16 px (a) Menu (b) Label (c) Body text (d) Footer
29. 29.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Hint: 22 px
    Footer: 11 px
    Label: 10 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Footer: 21 px
    Menu: 9 px
    Label: 26 px
    Caption: 26 px (a) Footer (b) Title (c) Label (d) Menu
32. 32.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Hint: 18 px
    Title: 21 px
    Body text: 18 px
34. 34.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
35. 35.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
36. 36.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
37. 37.Which of these makes the app harder to use? (a) labels on every icon (b) sudden loud sounds (c) big touch targets (d) strong colour contrast
38. 38.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) big touch targets (d) text that can grow
39. 39.True or false: “captions on videos” 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?
    Footer: 18 px
    Body text: 12 px
    Title: 14 px
    Hint: 21 px
    Label: 20 px

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