App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 471 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
2. 2.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) fast-flashing lights (d) captions on videos
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 23 px
   Footer: 10 px
   Hint: 26 px
   Body text: 21 px
   Label: 25 px (a) Footer (b) Body text (c) Caption (d) Hint
4. 4.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) icons with no labels
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 23 px
   Footer: 24 px
   Caption: 18 px
   Title: 11 px
   Body text: 16 px
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
7. 7.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) sudden loud sounds
8. 8.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
10. 10.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) big touch targets (d) tiny tap areas
11. 11.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
12. 12.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) labels on every icon (d) captions on videos
13. 13.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Label: 11 px
    Body text: 10 px
15. 15.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
16. 16.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Hint: 25 px
    Body text: 28 px
    Title: 18 px
    Caption: 16 px (a) Footer (b) Hint (c) Title (d) Body text
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Hint: 17 px
    Footer: 22 px
    Label: 22 px
19. 19.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Hint: 22 px
    Footer: 10 px (a) Caption (b) Footer (c) Hint
21. 21.Which of these makes the app harder to use? (a) fast-flashing lights (b) captions on videos (c) strong colour contrast (d) labels on every icon
22. 22.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) labels on every icon (d) big touch targets
23. 23.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) captions on videos
24. 24.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) tiny tap areas (d) colour as the only clue
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Title: 20 px
    Body text: 11 px (a) Label (b) Body text (c) Title
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Hint: 13 px
    Caption: 19 px
    Footer: 24 px (a) Footer (b) Hint (c) Label (d) Caption
27. 27.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) labels on every icon
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Body text: 20 px
    Label: 9 px (a) Hint (b) Body text (c) Label
29. 29.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) captions on videos (d) icons with no labels
30. 30.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
31. 31.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Hint: 21 px
    Body text: 27 px (a) Label (b) Hint (c) Body text
34. 34.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
36. 36.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 17 px
    Label: 22 px
38. 38.Which of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) colour as the only clue (d) tiny tap areas
39. 39.🔍 Which is the odd one out? (a) sudden loud sounds (b) strong colour contrast (c) fast-flashing lights (d) icons with no labels
40. 40.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder

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