App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 781 · 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. How many texts on this screen are too small?
   Footer: 23 px
   Hint: 14 px
   Menu: 24 px
2. 2.Which of these makes the app harder to use? (a) captions on videos (b) fast-flashing lights (c) labels on every icon (d) strong colour contrast
3. 3.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds
4. 4.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
5. 5.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
6. 6.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
7. 7.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
8. 8.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
9. 9.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
10. 10.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
11. 11.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
12. 12.♿ 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
13. 13.♿ A screen has 7 icon buttons. Only 2 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. Which text on this screen is too small?
    Hint: 20 px
    Title: 20 px
    Label: 12 px
    Caption: 19 px
    Footer: 23 px (a) Caption (b) Label (c) Title (d) Hint
15. 15.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Caption: 11 px
    Body text: 28 px
    Label: 25 px (a) Label (b) Caption (c) Title (d) Body text
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Title: 15 px
    Label: 12 px
18. 18.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
19. 19.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Caption: 13 px
    Footer: 11 px
    Body text: 21 px
21. 21.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
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?
    Hint: 18 px
    Title: 13 px
    Footer: 26 px (a) Title (b) Hint (c) Footer
24. 24.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Footer: 20 px
    Label: 22 px
    Body text: 10 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Body text: 24 px
    Title: 23 px
    Menu: 14 px
29. 29.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) sudden loud sounds (d) icons with no labels
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Body text: 14 px
    Footer: 23 px
    Title: 20 px
    Hint: 16 px
31. 31.Which of these makes the app harder to use? (a) sudden loud sounds (b) captions on videos (c) labels on every icon (d) text that can grow
32. 32.Which of these makes the app harder to use? (a) captions on videos (b) tiny tap areas (c) text that can grow (d) labels on every icon
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Menu: 13 px
    Label: 21 px (a) Label (b) Menu (c) Caption
34. 34.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) big touch targets (d) labels on every icon
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Menu: 17 px
    Body text: 10 px
36. 36.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) colour as the only clue (d) tiny tap areas
37. 37.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) sudden loud sounds (d) colour as the only clue
38. 38.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Footer: 22 px
    Caption: 12 px
40. 40.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False

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