App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 191 · 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?
   Body text: 23 px
   Label: 10 px
   Title: 19 px
   Caption: 16 px
   Footer: 24 px (a) Label (b) Title (c) Caption (d) Body text
2. 2.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 21 px
   Title: 17 px
   Body text: 13 px
   Footer: 16 px
   Label: 19 px (a) Footer (b) Menu (c) Title (d) Body text
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 10 px
   Body text: 17 px
   Caption: 24 px
   Hint: 25 px
   Menu: 27 px (a) Caption (b) Body text (c) Hint (d) Label
5. 5.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) captions on videos (d) text that can grow
6. 6.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) big touch targets
9. 9.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Title: 28 px
    Menu: 18 px
    Label: 11 px
    Footer: 28 px (a) Menu (b) Caption (c) Title (d) Label
11. 11.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
12. 12.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) strong colour contrast
13. 13.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
14. 14.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
15. 15.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) captions on videos
17. 17.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) tiny tap areas
18. 18.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
19. 19.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Title: 26 px
    Menu: 19 px (a) Footer (b) Menu (c) Title
21. 21.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
22. 22.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Body text: 25 px
    Footer: 20 px (a) Footer (b) Body text (c) Caption
25. 25.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Body text: 16 px
    Caption: 18 px
27. 27.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
28. 28.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) sudden loud sounds (d) icons with no labels
29. 29.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
30. 30.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Title: 20 px
    Hint: 24 px
    Footer: 9 px (a) Caption (b) Hint (c) Title (d) Footer
32. 32.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
33. 33.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
34. 34.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
35. 35.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
36. 36.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
37. 37.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) text that can grow (d) strong colour contrast
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Caption: 20 px
    Hint: 17 px
    Menu: 21 px (a) Caption (b) Menu (c) Hint (d) Body text
39. 39.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Title: 28 px
    Label: 21 px
    Footer: 28 px (a) Label (b) Footer (c) Title (d) Body text

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