App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 131 · 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 of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) big touch targets
2. 2.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) big touch targets (d) colour as the only clue
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
5. 5.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
7. 7.Which of these makes the app harder to use? (a) labels on every icon (b) icons with no labels (c) captions on videos (d) text that can grow
8. 8.Which of these makes the app harder to use? (a) fast-flashing lights (b) captions on videos (c) labels on every icon (d) big touch targets
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 18 px
   Label: 19 px
   Body text: 10 px (a) Body text (b) Label (c) Footer
10. 10.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
11. 11.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Label: 22 px
    Footer: 11 px (a) Footer (b) Title (c) Label
13. 13.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) icons with no labels (d) colour as the only clue
14. 14.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) sudden loud sounds (d) colour as the only clue
15. 15.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) colour as the only clue (d) text that can grow
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Body text: 25 px
    Caption: 20 px (a) Caption (b) Label (c) Body text
18. 18.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
19. 19.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
20. 20.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
21. 21.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
22. 22.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) colour as the only clue (d) fast-flashing lights
23. 23.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) labels on every icon (d) text that can grow
25. 25.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
26. 26.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
27. 27.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Body text: 15 px
    Title: 14 px
29. 29.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
30. 30.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
31. 31.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Hint: 11 px
    Label: 16 px
    Body text: 25 px (a) Title (b) Label (c) Hint (d) Body text
33. 33.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
34. 34.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
35. 35.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
36. 36.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) big touch targets (d) fast-flashing lights
37. 37.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) tiny tap areas (d) big touch targets
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Label: 10 px
    Title: 17 px
    Hint: 18 px (a) Body text (b) Title (c) Hint (d) Label
39. 39.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
40. 40.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder

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