App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 212 · 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) colour as the only clue (b) sudden loud sounds (c) fast-flashing lights (d) captions on videos
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 26 px
   Menu: 28 px
   Title: 20 px
   Body text: 9 px
   Hint: 24 px (a) Title (b) Body text (c) Label (d) Menu
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) big touch targets
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 14 px
   Footer: 27 px
   Body text: 24 px (a) Body text (b) Menu (c) Footer
5. 5.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
6. 6.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) tiny tap areas (d) sudden loud sounds
8. 8.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
9. 9.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) makes text tiny (d) plays music
10. 10.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
11. 11.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
12. 12.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Menu: 10 px
    Caption: 22 px
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Footer: 24 px
    Title: 12 px
    Caption: 28 px (a) Title (b) Footer (c) Label (d) Caption
15. 15.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) strong colour contrast (d) big touch targets
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 26 px
    Title: 9 px
    Label: 19 px (a) Label (b) Menu (c) Title
17. 17.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) captions on videos (d) text that can grow
18. 18.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Menu: 22 px
    Caption: 21 px (a) Hint (b) Menu (c) Caption
20. 20.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
21. 21.Which of these helps everyone use the app? (a) sudden loud sounds (b) text that can grow (c) icons with no labels (d) tiny tap areas
22. 22.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
23. 23.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) sudden loud sounds (d) labels on every icon
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Label: 21 px
    Footer: 11 px
26. 26.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
27. 27.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
28. 28.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Title: 16 px
    Caption: 23 px
    Footer: 10 px
    Body text: 20 px (a) Title (b) Caption (c) Menu (d) Footer
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
31. 31.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Menu: 16 px
    Label: 21 px
    Body text: 12 px (a) Caption (b) Menu (c) Label (d) Body text
33. 33.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Label: 17 px
    Caption: 19 px
    Menu: 27 px
    Title: 12 px (a) Hint (b) Label (c) Title (d) Caption
35. 35.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
36. 36.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) icons with no labels (d) fast-flashing lights
37. 37.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
39. 39.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) text that can grow (d) strong colour contrast
40. 40.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) fast-flashing lights

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