App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 663 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
3. 3.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) strong colour contrast (d) tiny tap areas
4. 4.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 17 px
   Menu: 27 px
   Caption: 9 px
   Hint: 28 px
   Title: 27 px (a) Menu (b) Footer (c) Caption (d) Hint
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 23 px
   Menu: 12 px
   Hint: 15 px
7. 7.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
8. 8.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) strong colour contrast (d) big touch targets
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) strong colour contrast
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Caption: 19 px
    Footer: 18 px
    Hint: 11 px
    Title: 27 px (a) Label (b) Caption (c) Hint (d) Footer
13. 13.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Label: 17 px
    Title: 21 px
    Menu: 19 px
15. 15.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Footer: 19 px
    Label: 22 px (a) Label (b) Body text (c) Footer
17. 17.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) text that can grow (d) fast-flashing lights
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Body text: 24 px
    Footer: 19 px
    Title: 17 px
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Label: 23 px
    Menu: 25 px
    Body text: 14 px (a) Menu (b) Title (c) Label (d) Body text
21. 21.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
22. 22.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) fast-flashing lights
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Title: 10 px
    Footer: 16 px
    Label: 17 px
    Body text: 20 px
24. 24.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
25. 25.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) icons with no labels (d) captions on videos
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Menu: 24 px
    Footer: 24 px
    Caption: 11 px
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Caption: 12 px
    Menu: 11 px
28. 28.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Label: 17 px
    Footer: 14 px
    Title: 10 px
30. 30.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
31. 31.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Title: 28 px
    Caption: 16 px (a) Title (b) Caption (c) Footer
33. 33.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
34. 34.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Footer: 14 px
    Caption: 12 px
    Title: 10 px
36. 36.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
37. 37.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
38. 38.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Title: 16 px
    Menu: 24 px
    Footer: 11 px
    Body text: 22 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 25 px
    Body text: 11 px
    Caption: 17 px (a) Caption (b) Label (c) Body text

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