App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 837 · 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.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
2. 2.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
3. 3.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) big touch targets (d) labels on every icon
5. 5.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
6. 6.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 16 px
   Menu: 12 px
   Label: 10 px
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 25 px
   Body text: 12 px
   Caption: 23 px (a) Caption (b) Hint (c) Body text
10. 10.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) captions on videos
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Footer: 27 px
    Menu: 16 px
    Body text: 25 px
    Hint: 18 px (a) Body text (b) Menu (c) Footer (d) Caption
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Caption: 11 px
    Footer: 22 px
13. 13.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) big touch targets (d) text that can grow
14. 14.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
15. 15.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
16. 16.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
17. 17.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 17 px
    Title: 12 px
    Menu: 23 px
    Hint: 12 px
19. 19.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) labels on every icon
20. 20.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
21. 21.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
22. 22.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) big touch targets (d) fast-flashing lights
23. 23.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) labels on every icon (d) big touch targets
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 26 px
    Menu: 14 px
    Title: 22 px (a) Body text (b) Title (c) Menu
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Body text: 17 px
    Label: 24 px
    Menu: 22 px
26. 26.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) tiny tap areas (d) strong colour contrast
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Body text: 16 px
    Label: 20 px
31. 31.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Does this help everyone, or make the app harder to use: captions on videos? (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?
    Hint: 10 px
    Title: 27 px
    Body text: 26 px
    Label: 28 px (a) Label (b) Hint (c) Body text (d) Title
35. 35.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) labels on every icon (d) fast-flashing lights
36. 36.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) strong colour contrast
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Menu: 17 px
    Hint: 28 px
    Label: 21 px
    Title: 22 px (a) Hint (b) Label (c) Menu (d) Body text
38. 38.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
39. 39.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
40. 40.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) colour as the only clue

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