App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 108 · 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: “text that can grow” helps everyone use the app. (a) True (b) False
2. 2.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
4. 4.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) strong colour contrast (d) icons with no labels
5. 5.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
6. 6.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
7. 7.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) strong colour contrast (d) captions on videos
9. 9.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) colour as the only clue (d) captions on videos
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Footer: 14 px
    Hint: 19 px
    Title: 28 px
    Caption: 18 px (a) Hint (b) Title (c) Footer (d) Body text
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Menu: 23 px
    Footer: 10 px
    Title: 16 px
    Body text: 28 px (a) Footer (b) Caption (c) Title (d) Menu
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Title: 19 px
    Body text: 22 px
    Caption: 16 px
13. 13.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
15. 15.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
16. 16.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
17. 17.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) tiny tap areas (d) icons with no labels
18. 18.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) text that can grow (d) labels on every icon
19. 19.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Title: 23 px
    Footer: 16 px (a) Title (b) Footer (c) Menu
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) labels on every icon
22. 22.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.♿ 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
24. 24.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) strong colour contrast (d) colour as the only clue
25. 25.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
28. 28.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) strong colour contrast
29. 29.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.Which of these helps everyone use the app? (a) colour as the only clue (b) text that can grow (c) icons with no labels (d) tiny tap areas
31. 31.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
32. 32.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
33. 33.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
34. 34.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
35. 35.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
37. 37.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Label: 11 px
    Hint: 25 px (a) Hint (b) Label (c) Footer
39. 39.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
40. 40.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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