App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 815 · 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. Which text on this screen is too small?
   Menu: 23 px
   Body text: 17 px
   Footer: 16 px
   Label: 22 px
   Caption: 10 px (a) Body text (b) Footer (c) Menu (d) Caption
2. 2.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 10 px
   Footer: 23 px
   Label: 11 px
   Caption: 21 px
4. 4.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
5. 5.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
6. 6.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) sudden loud sounds (d) text that can grow
8. 8.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 26 px
   Label: 19 px
   Footer: 13 px (a) Label (b) Footer (c) Body text
10. 10.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) text that can grow (d) captions on videos
12. 12.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
13. 13.🔍 Which is the odd one out? (a) colour as the only clue (b) strong colour contrast (c) captions on videos (d) text that can grow
14. 14.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
15. 15.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
16. 16.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) icons with no labels
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
18. 18.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
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.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Caption: 10 px
    Footer: 19 px
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Label: 10 px
    Body text: 10 px
    Title: 15 px
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Hint: 11 px
    Body text: 20 px
    Footer: 27 px
    Caption: 22 px (a) Body text (b) Label (c) Hint (d) Footer
24. 24.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
25. 25.♿ 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
26. 26.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Label: 22 px
    Title: 28 px
    Body text: 10 px (a) Hint (b) Label (c) Body text (d) Title
28. 28.Which of these makes the app harder to use? (a) big touch targets (b) fast-flashing lights (c) text that can grow (d) captions on videos
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Footer: 28 px
    Hint: 20 px
    Body text: 16 px
    Menu: 16 px (a) Footer (b) Caption (c) Hint (d) Body text
30. 30.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
31. 31.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) big touch targets
32. 32.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) sudden loud sounds
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Label: 17 px
    Caption: 24 px (a) Menu (b) Caption (c) Label
34. 34.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
35. 35.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
37. 37.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) text that can grow
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Body text: 17 px
    Menu: 12 px
    Footer: 19 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Body text: 14 px
    Caption: 11 px
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Caption: 20 px
    Footer: 10 px

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