App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 114 · 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) False (b) True
2. 2.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) colour-blind users (d) fast typists
4. 4.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) labels on every icon (d) colour as the only clue
5. 5.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) icons with no labels (d) labels on every icon
6. 6.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) strong colour contrast
7. 7.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
9. 9.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) captions on videos
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) strong colour contrast (d) sudden loud sounds
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Footer: 24 px
    Title: 12 px
    Hint: 16 px (a) Footer (b) Title (c) Hint (d) Menu
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Body text: 22 px
    Caption: 17 px
    Footer: 23 px (a) Hint (b) Footer (c) Caption (d) Body text
13. 13.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Hint: 12 px
    Caption: 26 px (a) Caption (b) Body text (c) Hint
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Hint: 14 px
    Footer: 19 px
    Caption: 16 px
    Menu: 20 px (a) Title (b) Hint (c) Caption (d) Footer
16. 16.Which of these helps everyone use the app? (a) text that can grow (b) icons with no labels (c) colour as the only clue (d) sudden loud sounds
17. 17.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
18. 18.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) text that can grow
19. 19.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
20. 20.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) text that can grow (d) tiny tap areas
21. 21.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Label: 12 px
    Title: 17 px
    Menu: 21 px
    Footer: 23 px (a) Menu (b) Label (c) Title (d) Body text
23. 23.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
24. 24.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
25. 25.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
26. 26.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Label: 21 px
    Menu: 19 px
28. 28.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
30. 30.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
31. 31.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Menu: 16 px
    Title: 14 px
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Body text: 25 px
    Label: 23 px
    Caption: 12 px
    Footer: 16 px (a) Label (b) Body text (c) Caption (d) Hint
34. 34.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
36. 36.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
37. 37.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
38. 38.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
39. 39.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) labels on every icon (d) strong colour contrast
40. 40.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow

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