App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 434 · 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 makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) fast-flashing lights (d) labels on every icon
2. 2.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) colour as the only clue (d) big touch targets
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 12 px
   Label: 21 px
   Title: 16 px
   Hint: 22 px
   Footer: 28 px (a) Hint (b) Label (c) Title (d) Body text
4. 4.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 22 px
   Title: 18 px
   Menu: 23 px
   Label: 22 px
   Hint: 10 px (a) Title (b) Menu (c) Body text (d) Hint
7. 7.♿ Accessibility means an app works for ___. (a) everyone (b) nobody (c) only the coder (d) only experts
8. 8.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
9. 9.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) text that can grow (d) big touch targets
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Body text: 18 px
    Title: 21 px
    Caption: 26 px (a) Label (b) Title (c) Caption (d) Body text
11. 11.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) fast-flashing lights (d) captions on videos
12. 12.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) strong colour contrast (d) sudden loud sounds
13. 13.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) colour as the only clue
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
16. 16.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) sudden loud sounds (d) colour as the only clue
17. 17.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) captions on videos
18. 18.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) sudden loud sounds (d) captions on videos
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Label: 19 px
    Footer: 16 px
    Caption: 14 px
22. 22.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
23. 23.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
24. 24.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
25. 25.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Body text: 24 px
    Label: 20 px
27. 27.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) text that can grow (d) tiny tap areas
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Body text: 9 px
    Title: 26 px (a) Title (b) Body text (c) Hint
29. 29.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) strong colour contrast (d) tiny tap areas
30. 30.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) text that can grow (d) big touch targets
31. 31.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 23 px
    Title: 10 px
    Hint: 20 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Label: 10 px
    Title: 23 px
    Body text: 10 px
34. 34.True or false: “fast-flashing lights” 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?
    Caption: 18 px
    Title: 13 px
    Body text: 17 px
    Menu: 23 px
    Label: 16 px
36. 36.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Title: 17 px
    Label: 14 px
38. 38.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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