App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 481 · 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. How many texts on this screen are too small?
   Body text: 15 px
   Caption: 14 px
   Footer: 13 px
   Hint: 17 px
   Menu: 17 px
2. 2.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) captions on videos (d) labels on every icon
3. 3.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) fast-flashing lights (d) labels on every icon
4. 4.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) sudden loud sounds
5. 5.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) big touch targets (d) fast-flashing lights
6. 6.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 19 px
   Label: 10 px
   Footer: 22 px
   Hint: 22 px
   Body text: 10 px
8. 8.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
10. 10.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
11. 11.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
13. 13.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
14. 14.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Caption: 12 px
    Title: 10 px
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Body text: 23 px
    Title: 24 px
    Caption: 21 px
    Footer: 10 px (a) Body text (b) Footer (c) Label (d) Title
17. 17.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
18. 18.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) labels on every icon (d) captions on videos
19. 19.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) big touch targets
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Label: 23 px
    Title: 13 px
    Footer: 12 px
    Hint: 11 px
21. 21.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) captions on videos
22. 22.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
23. 23.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) sudden loud sounds (d) captions on videos
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Menu: 22 px
    Footer: 27 px (a) Footer (b) Title (c) Menu
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. Which text on this screen is too small?
    Title: 11 px
    Label: 27 px
    Hint: 18 px (a) Label (b) Hint (c) Title
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Footer: 26 px
    Menu: 26 px (a) Menu (b) Label (c) Footer
28. 28.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Label: 17 px
    Caption: 16 px
    Menu: 25 px
    Hint: 10 px (a) Label (b) Caption (c) Footer (d) Hint
30. 30.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Footer: 12 px
    Caption: 15 px
32. 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
33. 33.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) fast-flashing lights (d) text that can grow
34. 34.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
35. 35.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Title: 23 px
    Body text: 28 px (a) Label (b) Body text (c) Title
37. 37.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
39. 39.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
40. 40.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server

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