App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 393 · 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: “labels on every icon” makes the app harder to use. (a) True (b) False
2. 2.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
3. 3.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
5. 5.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) tiny tap areas (d) sudden loud sounds
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
8. 8.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) colour as the only clue
9. 9.Which of these helps everyone use the app? (a) strong colour contrast (b) fast-flashing lights (c) sudden loud sounds (d) tiny tap areas
10. 10.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
11. 11.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
12. 12.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
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.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
15. 15.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) text that can grow (d) big touch targets
16. 16.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
17. 17.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
18. 18.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
19. 19.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) icons with no labels (d) colour as the only clue
21. 21.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
22. 22.Which of these helps everyone use the app? (a) fast-flashing lights (b) captions on videos (c) colour as the only clue (d) tiny tap areas
23. 23.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) text that can grow
24. 24.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) big touch targets (d) labels on every icon
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Footer: 18 px
    Title: 21 px (a) Footer (b) Title (c) Hint
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
28. 28.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Title: 19 px
    Hint: 10 px
    Body text: 24 px (a) Title (b) Hint (c) Footer (d) Body text
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Label: 20 px
    Caption: 10 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Title: 28 px
    Caption: 28 px (a) Caption (b) Footer (c) Title
32. 32.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) icons with no labels
33. 33.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Footer: 10 px
    Body text: 19 px (a) Caption (b) Body text (c) Footer
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
36. 36.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) sudden loud sounds (d) text that can grow
37. 37.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
38. 38.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
39. 39.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
40. 40.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False

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