App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 63 · 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.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
2. 2.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 23 px
   Title: 10 px
   Caption: 17 px
   Label: 19 px
   Body text: 22 px (a) Menu (b) Title (c) Caption (d) Label
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 19 px
   Menu: 26 px
   Body text: 17 px
   Caption: 21 px
   Label: 12 px (a) Body text (b) Hint (c) Menu (d) Label
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 17 px
   Body text: 15 px
   Menu: 10 px
   Footer: 10 px
7. 7.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 12 px
   Footer: 10 px
   Label: 22 px
9. 9.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) colour as the only clue (d) captions on videos
10. 10.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) sudden loud sounds (d) text that can grow
11. 11.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Body text: 18 px
    Title: 24 px
    Footer: 28 px (a) Body text (b) Title (c) Footer (d) Menu
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 11 px
    Caption: 22 px
    Label: 20 px
    Hint: 21 px (a) Hint (b) Footer (c) Label (d) Caption
14. 14.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) captions on videos (d) tiny tap areas
15. 15.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Caption: 16 px
    Footer: 11 px
    Title: 13 px
17. 17.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
18. 18.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
19. 19.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) labels on every icon
20. 20.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) fast-flashing lights
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Caption: 17 px
    Body text: 22 px
    Hint: 16 px
    Menu: 19 px (a) Hint (b) Caption (c) Title (d) Body text
22. 22.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) sudden loud sounds (d) fast-flashing lights
23. 23.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Menu: 19 px
    Label: 9 px (a) Label (b) Menu (c) Hint
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Title: 12 px
    Label: 19 px
    Caption: 22 px
26. 26.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) big touch targets (d) sudden loud sounds
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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Label: 15 px
    Hint: 23 px
29. 29.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
31. 31.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
32. 32.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the battery (d) the server
34. 34.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
35. 35.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Label: 14 px
    Caption: 14 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Caption: 14 px
    Footer: 26 px
    Label: 16 px (a) Label (b) Caption (c) Footer (d) Body text
38. 38.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Title: 16 px
    Menu: 17 px (a) Title (b) Caption (c) Menu
40. 40.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True

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