App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 291 · 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.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
3. 3.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
4. 4.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
5. 5.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 18 px
   Hint: 16 px
   Body text: 20 px
7. 7.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) captions on videos
8. 8.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 10 px
   Hint: 20 px
   Label: 15 px
10. 10.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
11. 11.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) labels on every icon
13. 13.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Menu: 13 px
    Footer: 23 px
    Hint: 17 px
    Body text: 23 px (a) Label (b) Menu (c) Footer (d) Hint
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Label: 10 px
    Caption: 21 px
    Title: 20 px (a) Label (b) Body text (c) Title (d) Caption
16. 16.♿ 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
17. 17.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Hint: 10 px
    Caption: 21 px
    Footer: 25 px
    Label: 24 px (a) Hint (b) Caption (c) Body text (d) Footer
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Footer: 19 px
    Title: 28 px (a) Title (b) Body text (c) Footer
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) colour as the only clue
21. 21.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
22. 22.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
23. 23.Which of these helps everyone use the app? (a) tiny tap areas (b) text that can grow (c) sudden loud sounds (d) icons with no labels
24. 24.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
25. 25.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) colour as the only clue (d) labels on every icon
27. 27.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Hint: 17 px
    Label: 23 px
    Caption: 13 px
    Footer: 17 px
29. 29.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) captions on videos
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 23 px
    Hint: 22 px
    Body text: 10 px
    Title: 16 px
    Footer: 17 px (a) Title (b) Hint (c) Caption (d) Body text
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Caption: 12 px
    Menu: 17 px
34. 34.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) colour as the only clue (d) big touch targets
36. 36.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
37. 37.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
38. 38.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) colour as the only clue (d) tiny tap areas
39. 39.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
40. 40.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) labels on every icon

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