App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 462 · 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.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) captions on videos (d) icons with no labels
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 24 px
   Title: 24 px
   Menu: 10 px
   Body text: 23 px
3. 3.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) colour as the only clue (d) big touch targets
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Caption: 21 px
   Label: 16 px
   Hint: 20 px
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 13 px
   Caption: 18 px
   Title: 21 px
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 15 px
   Caption: 15 px
   Hint: 14 px
8. 8.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) text that can grow
9. 9.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Title: 23 px
    Body text: 11 px
    Caption: 23 px
    Hint: 24 px
11. 11.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
12. 12.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Caption: 13 px
    Title: 23 px
    Label: 10 px
14. 14.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
15. 15.Which of these makes the app harder to use? (a) text that can grow (b) colour as the only clue (c) big touch targets (d) captions on videos
16. 16.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
17. 17.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) nobody (d) only experts
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Footer: 17 px
    Title: 11 px (a) Footer (b) Caption (c) Title
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) icons with no labels
20. 20.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Caption: 10 px
    Hint: 10 px
    Footer: 24 px
22. 22.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a bright colour (d) a sound
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Footer: 13 px
    Title: 16 px
    Body text: 11 px
    Caption: 24 px
24. 24.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
25. 25.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
28. 28.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) big touch targets (d) captions on videos
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Caption: 16 px
    Menu: 26 px (a) Caption (b) Body text (c) Menu
30. 30.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Caption: 24 px
    Menu: 14 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Body text: 25 px
    Title: 10 px (a) Title (b) Body text (c) Menu
33. 33.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Body text: 24 px
    Hint: 15 px
    Title: 10 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Caption: 12 px
    Label: 20 px (a) Hint (b) Label (c) Caption
37. 37.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
38. 38.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) icons with no labels (d) tiny tap areas
39. 39.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “big touch targets” helps everyone use the app. (a) True (b) False

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