App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 370 · 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?
   Title: 9 px
   Caption: 17 px
   Body text: 17 px
   Hint: 26 px
   Menu: 21 px (a) Hint (b) Body text (c) Caption (d) Title
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 27 px
   Footer: 16 px
   Label: 11 px (a) Hint (b) Label (c) Footer
4. 4.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
5. 5.♿ 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
6. 6.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) icons with no labels
7. 7.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
9. 9.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) text that can grow (d) labels on every icon
11. 11.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) text that can grow
12. 12.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
13. 13.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
14. 14.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Hint: 26 px
    Label: 12 px (a) Hint (b) Caption (c) Label
16. 16.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Footer: 18 px
    Menu: 23 px
    Caption: 11 px (a) Footer (b) Menu (c) Hint (d) Caption
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Body text: 23 px
    Hint: 10 px (a) Label (b) Hint (c) Body text
19. 19.♿ A screen has 12 icon buttons. Only 10 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. How many texts on this screen are too small?
    Footer: 18 px
    Label: 24 px
    Title: 21 px
    Caption: 17 px
21. 21.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Footer: 17 px
    Menu: 28 px (a) Menu (b) Footer (c) Caption
23. 23.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) labels on every icon
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Label: 19 px
    Body text: 26 px
    Title: 12 px (a) Title (b) Body text (c) Label (d) Footer
26. 26.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
27. 27.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Title: 25 px
    Label: 19 px
    Body text: 14 px (a) Caption (b) Body text (c) Label (d) Title
29. 29.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) text that can grow (d) strong colour contrast
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
31. 31.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) icons with no labels
32. 32.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
33. 33.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Label: 26 px
    Hint: 20 px (a) Footer (b) Label (c) Hint
35. 35.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
36. 36.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
37. 37.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
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.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Label: 26 px
    Hint: 19 px
    Title: 19 px
    Footer: 25 px (a) Label (b) Hint (c) Menu (d) Title

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