App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 417 · 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.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
2. 2.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 17 px
   Hint: 28 px
   Label: 22 px
   Footer: 14 px (a) Footer (b) Hint (c) Body text (d) Label
4. 4.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 23 px
   Body text: 23 px
   Footer: 21 px
   Hint: 19 px
   Label: 11 px (a) Body text (b) Label (c) Title (d) Footer
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
7. 7.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) icons with no labels
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 24 px
   Menu: 10 px
   Footer: 13 px
9. 9.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
10. 10.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
11. 11.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Title: 25 px
    Footer: 10 px (a) Menu (b) Title (c) Footer
13. 13.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
14. 14.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Title: 16 px
    Body text: 25 px
    Footer: 16 px (a) Body text (b) Footer (c) Menu (d) Title
16. 16.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
17. 17.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
19. 19.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
20. 20.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
21. 21.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
23. 23.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
24. 24.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) icons with no labels (d) colour as the only clue
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Footer: 23 px
    Title: 12 px
26. 26.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) captions on videos
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Hint: 19 px
    Caption: 12 px
    Label: 11 px
    Menu: 21 px
28. 28.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
29. 29.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
30. 30.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) tiny tap areas (d) sudden loud sounds
31. 31.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
32. 32.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Body text: 19 px
    Footer: 10 px
    Menu: 12 px
    Hint: 20 px
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) strong colour contrast (d) text that can grow
35. 35.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
36. 36.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) tiny tap areas (d) fast-flashing lights
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Hint: 18 px
    Footer: 18 px
    Body text: 22 px
    Label: 22 px
38. 38.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
40. 40.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True

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