App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 538 · 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?
   Hint: 20 px
   Menu: 10 px
   Title: 11 px
   Footer: 22 px
2. 2.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) tiny tap areas (d) text that can grow
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.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 20 px
   Caption: 12 px
   Label: 23 px
   Footer: 22 px
   Menu: 19 px (a) Caption (b) Label (c) Title (d) Footer
7. 7.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
8. 8.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) icons with no labels
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 11 px
   Label: 24 px
   Caption: 16 px
   Footer: 24 px
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Title: 10 px
    Hint: 18 px (a) Label (b) Hint (c) Title
11. 11.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
12. 12.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Body text: 22 px
    Label: 17 px
    Menu: 11 px
    Caption: 12 px
14. 14.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
15. 15.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
17. 17.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
19. 19.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Footer: 22 px
    Hint: 20 px
21. 21.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) icons with no labels
23. 23.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
25. 25.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
26. 26.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
27. 27.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Menu: 19 px
    Caption: 23 px
    Label: 23 px
29. 29.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) big touch targets (d) strong colour contrast
31. 31.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) icons with no labels
32. 32.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) sudden loud sounds (d) strong colour contrast
33. 33.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) colour as the only clue
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Hint: 25 px
    Title: 16 px
    Menu: 24 px
    Label: 23 px (a) Menu (b) Title (c) Body text (d) Hint
35. 35.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) icons with no labels (d) captions on videos
36. 36.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) big touch targets (d) labels on every icon
37. 37.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) strong colour contrast
38. 38.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
40. 40.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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