App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 75 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 25 px
   Title: 9 px
   Body text: 17 px (a) Body text (b) Footer (c) Title
2. 2.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
3. 3.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 24 px
   Menu: 23 px
   Body text: 23 px
5. 5.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
6. 6.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
7. 7.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 28 px
   Title: 24 px
   Caption: 10 px
   Footer: 23 px
   Body text: 20 px (a) Caption (b) Footer (c) Title (d) Label
9. 9.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) big touch targets (d) labels on every icon
10. 10.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) captions on videos
11. 11.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
12. 12.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
13. 13.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) text that can grow (d) tiny tap areas
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Footer: 28 px
    Caption: 21 px
    Body text: 14 px
    Label: 18 px (a) Caption (b) Body text (c) Title (d) Footer
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) sudden loud sounds (d) colour as the only clue
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Caption: 17 px
    Footer: 21 px
    Hint: 24 px
    Title: 10 px
17. 17.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a long animation (d) a text label
18. 18.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) labels on every icon (d) strong colour contrast
19. 19.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
20. 20.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
21. 21.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Label: 22 px
    Body text: 20 px
    Menu: 22 px
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 21 px
    Caption: 19 px
    Hint: 18 px
    Title: 20 px
    Footer: 23 px
24. 24.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Label: 18 px
    Body text: 24 px
    Footer: 12 px
    Caption: 10 px
26. 26.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Menu: 18 px
    Caption: 27 px (a) Body text (b) Menu (c) Caption
28. 28.Which of these makes the app harder to use? (a) tiny tap areas (b) labels on every icon (c) captions on videos (d) text that can grow
29. 29.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) big touch targets (d) colour as the only clue
30. 30.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) labels on every icon
31. 31.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
32. 32.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
33. 33.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
34. 34.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
35. 35.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) sudden loud sounds (d) icons with no labels
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Title: 18 px
    Hint: 11 px
38. 38.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) icons with no labels
39. 39.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) colour as the only clue (d) text that can grow
40. 40.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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