App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 215 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 14 px
   Footer: 21 px
   Title: 17 px
   Hint: 17 px (a) Title (b) Footer (c) Hint (d) Body text
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 16 px
   Footer: 13 px
   Hint: 27 px (a) Hint (b) Body text (c) Footer
3. 3.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) colour as the only clue (d) strong colour contrast
4. 4.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
5. 5.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
6. 6.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
7. 7.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
8. 8.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) fast-flashing lights (d) big touch targets
9. 9.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) text that can grow (d) strong colour contrast
10. 10.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Caption: 19 px
    Title: 15 px
12. 12.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) text that can grow (d) sudden loud sounds
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Menu: 13 px
    Label: 10 px
14. 14.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) labels on every icon (d) icons with no labels
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Label: 12 px
    Title: 16 px (a) Title (b) Label (c) Footer
16. 16.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
17. 17.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
18. 18.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
19. 19.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) labels on every icon
20. 20.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
22. 22.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Footer: 24 px
    Caption: 21 px
24. 24.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Caption: 19 px
    Menu: 11 px
    Body text: 24 px
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Body text: 17 px
    Menu: 14 px (a) Title (b) Body text (c) Menu
27. 27.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
29. 29.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
31. 31.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) colour as the only clue
32. 32.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) captions on videos
33. 33.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
36. 36.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) big touch targets (d) colour as the only clue
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Label: 22 px
    Hint: 19 px
    Title: 18 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Title: 24 px
    Label: 27 px (a) Title (b) Caption (c) Label
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
40. 40.♿ A screen has 12 icon buttons. Only 9 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