App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 373 · 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: 10 px
   Label: 16 px
   Body text: 25 px (a) Label (b) Body text (c) Title
2. 2.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
4. 4.True or false: “labels on every icon” 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?
   Title: 16 px
   Hint: 17 px
   Label: 11 px (a) Hint (b) Title (c) Label
6. 6.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
8. 8.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) big touch targets (d) labels on every icon
9. 9.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
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.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
12. 12.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Footer: 24 px
    Hint: 18 px
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
15. 15.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) sudden loud sounds (d) big touch targets
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Caption: 12 px
    Footer: 13 px
17. 17.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
18. 18.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Hint: 11 px
    Body text: 20 px (a) Title (b) Hint (c) Body text
20. 20.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
21. 21.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) everyone (d) only experts
22. 22.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Title: 23 px
    Caption: 20 px
24. 24.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Title: 20 px
    Menu: 11 px
26. 26.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Caption: 19 px
    Body text: 23 px
28. 28.Which of these makes the app harder to use? (a) sudden loud sounds (b) strong colour contrast (c) labels on every icon (d) text that can grow
29. 29.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Title: 17 px
    Hint: 11 px
    Body text: 22 px (a) Title (b) Body text (c) Menu (d) Hint
31. 31.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) strong colour contrast (d) colour as the only clue
34. 34.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a bright colour (d) a text label
35. 35.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
36. 36.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Body text: 26 px
    Footer: 27 px
    Title: 22 px
    Caption: 14 px (a) Hint (b) Body text (c) Caption (d) Footer
38. 38.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Hint: 19 px
    Footer: 10 px
    Body text: 20 px
    Menu: 16 px
40. 40.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True

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