App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 330 · 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) sudden loud sounds (b) fast-flashing lights (c) strong colour contrast (d) tiny tap areas
2. 2.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound
3. 3.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
4. 4.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Body text: 20 px
   Hint: 25 px
   Label: 16 px
   Title: 18 px (a) Body text (b) Hint (c) Label (d) Menu
6. 6.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
7. 7.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
8. 8.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) text that can grow
9. 9.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) sudden loud sounds (d) icons with no labels
10. 10.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Label: 13 px
    Hint: 15 px
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
13. 13.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
14. 14.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) icons with no labels
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Footer: 27 px
    Hint: 23 px
    Body text: 24 px (a) Label (b) Body text (c) Hint (d) Footer
16. 16.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
17. 17.Which of these helps everyone use the app? (a) labels on every icon (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
18. 18.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
19. 19.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Footer: 22 px
    Caption: 24 px
    Menu: 19 px
    Label: 20 px (a) Menu (b) Footer (c) Body text (d) Caption
21. 21.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) tiny tap areas
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Label: 16 px
    Caption: 17 px
    Menu: 12 px (a) Body text (b) Caption (c) Menu (d) Label
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Body text: 19 px
    Caption: 14 px (a) Body text (b) Hint (c) Caption
24. 24.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
25. 25.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
28. 28.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
29. 29.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
30. 30.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) labels on every icon (d) captions on videos
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Caption: 12 px
    Label: 11 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Caption: 23 px
    Label: 14 px (a) Footer (b) Label (c) Caption
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Title: 20 px
    Caption: 20 px
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 10 px
    Hint: 12 px
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Footer: 21 px
    Caption: 22 px
    Title: 18 px
    Body text: 18 px
36. 36.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) captions on videos (d) tiny tap areas
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Caption: 10 px
    Menu: 10 px
    Title: 18 px
39. 39.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
40. 40.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone

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