App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 534 · 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.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
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) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) icons with no labels
4. 4.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) captions on videos
5. 5.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
6. 6.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
7. 7.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) the server (d) fast typists
9. 9.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Menu: 21 px
    Title: 17 px
    Hint: 13 px
    Label: 13 px
11. 11.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (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?
    Caption: 10 px
    Body text: 20 px
    Label: 23 px
    Title: 15 px
    Menu: 20 px
14. 14.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) labels on every icon
15. 15.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
16. 16.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
17. 17.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) captions on videos
18. 18.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
19. 19.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
21. 21.Which of these helps everyone use the app? (a) text that can grow (b) icons with no labels (c) tiny tap areas (d) sudden loud sounds
22. 22.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) strong colour contrast
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Label: 16 px
    Caption: 9 px (a) Caption (b) Label (c) Title
25. 25.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
26. 26.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
27. 27.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) icons with no labels
28. 28.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
34. 34.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
35. 35.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) strong colour contrast
36. 36.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
38. 38.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) big touch targets (d) sudden loud sounds
39. 39.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (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

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