App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 639 · 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.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
2. 2.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
3. 3.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 18 px
   Footer: 20 px
   Body text: 17 px
   Hint: 20 px
   Label: 13 px
5. 5.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) strong colour contrast (d) text that can grow
6. 6.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 24 px
   Label: 13 px
   Caption: 23 px
   Title: 14 px
8. 8.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
9. 9.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) labels on every icon (d) icons with no labels
10. 10.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) captions on videos (c) fast-flashing lights (d) tiny tap areas
12. 12.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Footer: 16 px
    Caption: 24 px
    Title: 11 px
    Body text: 21 px
14. 14.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
15. 15.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) sudden loud sounds (d) labels on every icon
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 23 px
    Menu: 19 px
    Label: 23 px
    Body text: 13 px
    Footer: 16 px
17. 17.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
19. 19.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) big touch targets
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Caption: 18 px
    Label: 24 px
    Hint: 19 px
    Title: 12 px (a) Menu (b) Caption (c) Label (d) Title
21. 21.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) colour as the only clue (d) text that can grow
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) icons with no labels (d) fast-flashing lights
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Caption: 16 px
    Menu: 19 px
    Title: 14 px (a) Body text (b) Caption (c) Menu (d) Title
24. 24.♿ A screen has 7 icon buttons. Only 2 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. Which text on this screen is too small?
    Caption: 10 px
    Label: 20 px
    Title: 22 px
    Body text: 26 px
    Hint: 23 px (a) Title (b) Label (c) Body text (d) Caption
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Caption: 24 px
    Menu: 19 px
    Label: 16 px (a) Menu (b) Caption (c) Title (d) Label
27. 27.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
28. 28.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) text that can grow
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Title: 22 px
    Body text: 15 px
30. 30.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
31. 31.♿ A screen has 7 icon buttons. Only 6 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: text that can grow? (a) helps everyone (b) makes it harder
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Hint: 23 px
    Menu: 10 px
34. 34.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
35. 35.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) fast-flashing lights (d) strong colour contrast
36. 36.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
37. 37.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
38. 38.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
39. 39.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
40. 40.True or false: “captions on videos” makes the app harder to use. (a) True (b) False

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