App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 224 · 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?
   Label: 14 px
   Hint: 11 px
   Body text: 18 px
   Footer: 11 px
   Menu: 11 px
2. 2.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
3. 3.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) labels on every icon (d) text that can grow
4. 4.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) labels on every icon (d) captions on videos
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
6. 6.Which of these helps everyone use the app? (a) sudden loud sounds (b) big touch targets (c) tiny tap areas (d) icons with no labels
7. 7.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) icons with no labels (d) colour as the only clue
8. 8.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
9. 9.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
10. 10.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) captions on videos
12. 12.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
13. 13.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) colour as the only clue (d) sudden loud sounds
14. 14.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) big touch targets
16. 16.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Body text: 10 px
    Title: 14 px
    Hint: 17 px
18. 18.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
19. 19.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) icons with no labels (d) fast-flashing lights
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Footer: 17 px
    Hint: 18 px (a) Footer (b) Hint (c) Body text
21. 21.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
22. 22.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) captions on videos (d) sudden loud sounds
23. 23.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
24. 24.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Footer: 17 px
    Body text: 10 px
    Label: 11 px
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Menu: 16 px
    Label: 24 px
    Title: 22 px
    Caption: 16 px
27. 27.Which of these makes the app harder to use? (a) colour as the only clue (b) labels on every icon (c) big touch targets (d) captions on videos
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Body text: 21 px
    Footer: 24 px
    Menu: 22 px
    Label: 18 px (a) Footer (b) Caption (c) Menu (d) Body text
29. 29.♿ 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
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Footer: 10 px
    Body text: 20 px
    Title: 23 px (a) Footer (b) Title (c) Body text (d) Caption
31. 31.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
33. 33.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
34. 34.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Title: 17 px
    Menu: 20 px
    Caption: 24 px
    Body text: 9 px (a) Body text (b) Menu (c) Title (d) Label
37. 37.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Caption: 18 px
    Title: 14 px
    Menu: 12 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Hint: 9 px
    Menu: 16 px
    Title: 16 px
    Caption: 24 px (a) Title (b) Menu (c) Hint (d) Footer

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