App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 572 · 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) captions on videos (b) strong colour contrast (c) tiny tap areas (d) big touch targets
2. 2.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
3. 3.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
4. 4.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) labels on every icon (d) text that can grow
5. 5.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) big touch targets
6. 6.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
7. 7.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
8. 8.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
9. 9.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Hint: 9 px
    Title: 28 px (a) Title (b) Hint (c) Body text
12. 12.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Title: 10 px
    Hint: 18 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Hint: 15 px
    Menu: 17 px
15. 15.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) text that can grow (d) tiny tap areas
16. 16.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
17. 17.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
20. 20.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Footer: 11 px
    Body text: 18 px (a) Body text (b) Hint (c) Footer
22. 22.Which of these makes the app harder to use? (a) colour as the only clue (b) big touch targets (c) strong colour contrast (d) labels on every icon
23. 23.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) icons with no labels
24. 24.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) labels on every icon
25. 25.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
26. 26.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
27. 27.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) tiny tap areas
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Body text: 16 px
    Title: 24 px
    Hint: 16 px
    Label: 13 px (a) Footer (b) Title (c) Label (d) Body text
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Title: 18 px
    Footer: 12 px
    Caption: 16 px
    Menu: 19 px
30. 30.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
31. 31.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
32. 32.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
33. 33.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
34. 34.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
35. 35.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Label: 15 px
    Footer: 12 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Footer: 17 px
    Menu: 24 px
    Hint: 28 px (a) Hint (b) Footer (c) Menu (d) Label
38. 38.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
39. 39.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
40. 40.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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