App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 834 · 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?
   Footer: 24 px
   Menu: 22 px
   Label: 21 px
   Title: 11 px
   Hint: 19 px
2. 2.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
3. 3.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) fast-flashing lights (d) text that can grow
4. 4.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
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.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
8. 8.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 18 px
   Label: 12 px
   Footer: 14 px
   Hint: 24 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Title: 21 px
    Menu: 11 px
    Body text: 24 px
    Hint: 20 px
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Title: 13 px
    Label: 14 px
12. 12.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
13. 13.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
16. 16.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
17. 17.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
18. 18.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
19. 19.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) labels on every icon (d) big touch targets
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Hint: 12 px
    Caption: 17 px
    Label: 23 px
    Body text: 26 px (a) Caption (b) Hint (c) Title (d) Label
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) strong colour contrast (d) fast-flashing lights
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Caption: 21 px
    Hint: 14 px (a) Caption (b) Hint (c) Label
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Caption: 10 px
    Body text: 20 px
25. 25.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) captions on videos (d) text that can grow
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Label: 24 px
    Body text: 23 px
    Caption: 13 px
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Menu: 24 px
    Title: 19 px
    Footer: 12 px
    Caption: 15 px
29. 29.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 24 px
    Caption: 17 px
    Menu: 14 px
31. 31.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Menu: 20 px
    Hint: 10 px
    Caption: 21 px (a) Caption (b) Menu (c) Body text (d) Hint
33. 33.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) tiny tap areas
34. 34.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
35. 35.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) colour as the only clue (d) sudden loud sounds
36. 36.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
37. 37.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
38. 38.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Body text: 27 px
    Hint: 12 px
    Title: 17 px (a) Hint (b) Body text (c) Label (d) Title
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Title: 23 px
    Footer: 10 px
    Body text: 24 px
    Menu: 20 px

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