App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 390 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 10 px
   Hint: 23 px
   Footer: 12 px
   Menu: 13 px
2. 2.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 20 px
   Menu: 27 px
   Hint: 14 px
   Footer: 18 px
   Label: 20 px (a) Footer (b) Menu (c) Body text (d) Hint
4. 4.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
5. 5.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 10 px
   Title: 16 px
   Hint: 14 px
   Body text: 13 px
7. 7.Which of these helps everyone use the app? (a) colour as the only clue (b) icons with no labels (c) strong colour contrast (d) sudden loud sounds
8. 8.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
9. 9.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
10. 10.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
11. 11.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Title: 25 px
    Menu: 24 px
    Label: 13 px
    Body text: 23 px (a) Menu (b) Title (c) Label (d) Hint
13. 13.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
16. 16.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
17. 17.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.🔍 Which is the odd one out? (a) colour as the only clue (b) text that can grow (c) big touch targets (d) labels on every icon
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Menu: 28 px
    Title: 22 px (a) Body text (b) Title (c) Menu
20. 20.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) text that can grow
21. 21.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) icons with no labels (d) text that can grow
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) colour as the only clue (d) captions on videos
23. 23.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
24. 24.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
26. 26.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
28. 28.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
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.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
32. 32.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Body text: 26 px
    Caption: 11 px (a) Label (b) Body text (c) Caption
34. 34.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) fast-flashing lights
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Menu: 17 px
    Hint: 17 px
    Label: 22 px
    Footer: 20 px
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Hint: 12 px
    Menu: 13 px
37. 37.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) tiny tap areas
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Hint: 12 px
    Caption: 21 px (a) Title (b) Hint (c) Caption
39. 39.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Footer: 16 px
    Hint: 25 px
    Caption: 10 px (a) Title (b) Footer (c) Caption (d) Hint

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