App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 61 · 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.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
2. 2.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
4. 4.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) text that can grow (d) tiny tap areas
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) captions on videos
6. 6.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
7. 7.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) icons with no labels
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
9. 9.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
10. 10.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
11. 11.Which of these helps everyone use the app? (a) strong colour contrast (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Title: 27 px
    Hint: 9 px
    Body text: 28 px
    Menu: 16 px (a) Body text (b) Hint (c) Label (d) Title
13. 13.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
15. 15.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) big touch targets
16. 16.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
17. 17.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Hint: 24 px
    Footer: 16 px
19. 19.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) tiny tap areas
20. 20.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
21. 21.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) colour as the only clue (d) captions on videos
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Menu: 11 px
    Caption: 24 px
23. 23.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
24. 24.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Hint: 26 px
    Body text: 10 px (a) Body text (b) Hint (c) Label
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Title: 9 px
    Body text: 21 px
    Caption: 24 px (a) Body text (b) Caption (c) Menu (d) Title
27. 27.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) colour as the only clue
28. 28.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) labels on every icon (d) icons with no labels
30. 30.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
31. 31.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
32. 32.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) fast typists (d) colour-blind users
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Title: 28 px
    Caption: 20 px
    Hint: 27 px
    Label: 20 px (a) Footer (b) Caption (c) Title (d) Hint
36. 36.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
37. 37.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
40. 40.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True

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