App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 585 · 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.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 24 px
   Footer: 25 px
   Hint: 9 px (a) Label (b) Footer (c) Hint
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) icons with no labels (d) tiny tap areas
4. 4.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
5. 5.Which of these makes the app harder to use? (a) tiny tap areas (b) labels on every icon (c) strong colour contrast (d) captions on videos
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 25 px
   Footer: 20 px
   Menu: 13 px (a) Hint (b) Menu (c) Footer
7. 7.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) labels on every icon
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 18 px
   Caption: 10 px
   Hint: 28 px
   Menu: 17 px
   Title: 16 px (a) Menu (b) Body text (c) Hint (d) Caption
10. 10.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Body text: 17 px
    Label: 28 px
    Menu: 14 px (a) Hint (b) Menu (c) Body text (d) Label
12. 12.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
13. 13.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Body text: 19 px
    Title: 13 px
    Footer: 19 px
16. 16.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
17. 17.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) big touch targets
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Hint: 23 px
    Label: 12 px (a) Hint (b) Footer (c) Label
19. 19.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
20. 20.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
21. 21.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) big touch targets (d) sudden loud sounds
22. 22.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
23. 23.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
24. 24.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
25. 25.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Title: 22 px
    Menu: 11 px
    Hint: 13 px
    Body text: 13 px
27. 27.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
29. 29.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) text that can grow (d) sudden loud sounds
30. 30.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) colour as the only clue (d) icons with no labels
31. 31.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Footer: 27 px
    Title: 21 px (a) Title (b) Label (c) Footer
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Label: 21 px
    Menu: 12 px
    Footer: 28 px
    Title: 27 px (a) Menu (b) Footer (c) Label (d) Hint
34. 34.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
35. 35.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
36. 36.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Body text: 24 px
    Title: 17 px
    Footer: 12 px
    Hint: 12 px
38. 38.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
39. 39.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
40. 40.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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