App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 637 · 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) captions on videos (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
2. 2.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) tiny tap areas (d) fast-flashing lights
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
4. 4.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 13 px
   Footer: 28 px
   Hint: 20 px (a) Hint (b) Footer (c) Body text
6. 6.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) icons with no labels
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 17 px
   Title: 21 px
   Footer: 16 px
   Menu: 18 px
   Body text: 12 px
8. 8.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) fast-flashing lights
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Footer: 11 px
    Title: 12 px
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) text that can grow (d) colour as the only clue
12. 12.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) labels on every icon
13. 13.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Footer: 20 px
    Hint: 17 px
    Title: 23 px
    Caption: 11 px
15. 15.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
16. 16.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
17. 17.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Hint: 27 px
    Menu: 19 px
    Label: 9 px (a) Menu (b) Caption (c) Hint (d) Label
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) sudden loud sounds
20. 20.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) captions on videos
21. 21.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
22. 22.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) fast-flashing lights (d) icons with no labels
23. 23.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) icons with no labels (d) labels on every icon
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 21 px
    Hint: 9 px
    Title: 18 px (a) Label (b) Title (c) Hint
25. 25.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Caption: 26 px
    Hint: 9 px
    Label: 23 px
    Menu: 18 px (a) Label (b) Caption (c) Footer (d) Hint
27. 27.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a bright colour (d) a long animation
28. 28.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Caption: 13 px
    Menu: 21 px
31. 31.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Footer: 22 px
    Title: 25 px (a) Footer (b) Hint (c) Title
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Title: 25 px
    Hint: 23 px (a) Title (b) Hint (c) Footer
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) strong colour contrast (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: 19 px
    Title: 12 px
    Caption: 12 px
36. 36.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) strong colour contrast (d) tiny tap areas
37. 37.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) fast-flashing lights
38. 38.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
39. 39.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Hint: 13 px
    Label: 16 px
    Footer: 12 px
    Menu: 15 px

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