App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 88 · 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 helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) fast-flashing lights
2. 2.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
3. 3.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) fast-flashing lights
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 13 px
   Menu: 18 px
   Caption: 28 px
   Label: 27 px
   Hint: 28 px (a) Caption (b) Label (c) Menu (d) Title
5. 5.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) strong colour contrast (d) labels on every icon
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 10 px
   Caption: 10 px
   Title: 22 px
   Label: 17 px
7. 7.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
8. 8.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
9. 9.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) strong colour contrast
11. 11.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
12. 12.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
14. 14.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
15. 15.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
16. 16.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Body text: 20 px
    Title: 18 px
    Caption: 25 px
    Hint: 17 px (a) Title (b) Body text (c) Menu (d) Caption
18. 18.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a bright colour (d) a sound
19. 19.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) text that can grow (d) fast-flashing lights
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
22. 22.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
23. 23.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Body text: 13 px
    Menu: 17 px (a) Body text (b) Menu (c) Label
25. 25.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) icons with no labels (d) strong colour contrast
27. 27.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
28. 28.True or false: “labels on every icon” 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?
    Title: 12 px
    Body text: 25 px
    Caption: 23 px
    Menu: 26 px
    Hint: 24 px (a) Menu (b) Caption (c) Body text (d) Title
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Label: 13 px
    Body text: 10 px
31. 31.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
32. 32.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Label: 17 px
    Body text: 11 px (a) Body text (b) Label (c) Menu
34. 34.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Menu: 22 px
    Caption: 14 px
    Footer: 19 px
    Label: 16 px
36. 36.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Label: 18 px
    Title: 16 px
38. 38.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) labels on every icon
40. 40.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True

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