App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 610 · 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.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
3. 3.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
4. 4.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) big touch targets (d) colour as the only clue
5. 5.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
6. 6.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) fast-flashing lights (d) labels on every icon
7. 7.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 20 px
   Footer: 22 px
   Body text: 23 px
9. 9.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) sudden loud sounds
10. 10.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
11. 11.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
13. 13.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) text that can grow (d) sudden loud sounds
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Body text: 19 px
    Caption: 17 px (a) Body text (b) Hint (c) Caption
15. 15.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
17. 17.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) colour as the only clue (d) sudden loud sounds
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Caption: 10 px
    Hint: 12 px
    Menu: 22 px
20. 20.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) sudden loud sounds (d) colour as the only clue
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Label: 26 px
    Hint: 24 px
    Footer: 10 px (a) Label (b) Title (c) Hint (d) Footer
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Label: 23 px
    Footer: 23 px
    Title: 19 px (a) Footer (b) Label (c) Title (d) Body text
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) fast-flashing lights
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Hint: 16 px
    Caption: 12 px
    Title: 20 px
26. 26.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) strong colour contrast
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Hint: 28 px
    Body text: 24 px
    Title: 9 px
    Caption: 16 px (a) Hint (b) Menu (c) Title (d) Body text
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Menu: 23 px
    Label: 10 px
    Title: 23 px
30. 30.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) captions on videos (d) labels on every icon
31. 31.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Body text: 23 px
    Hint: 10 px
    Footer: 18 px
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Label: 19 px
    Footer: 25 px (a) Footer (b) Caption (c) Label
34. 34.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) labels on every icon (d) captions on videos
35. 35.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) captions on videos
36. 36.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) sudden loud sounds (d) colour as the only clue
37. 37.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Body text: 20 px
    Menu: 12 px
    Title: 12 px
    Hint: 22 px
39. 39.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
40. 40.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False

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