App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 743 · 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?
   Menu: 19 px
   Caption: 12 px
   Label: 20 px
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
3. 3.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
6. 6.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) fast-flashing lights (d) text that can grow
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
8. 8.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
9. 9.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) icons with no labels (d) sudden loud sounds
10. 10.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
11. 11.🔍 Which is the odd one out? (a) sudden loud sounds (b) strong colour contrast (c) text that can grow (d) captions on videos
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Footer: 17 px
    Label: 19 px
13. 13.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Footer: 20 px
    Body text: 24 px
    Title: 11 px
    Label: 20 px (a) Footer (b) Menu (c) Body text (d) Title
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) big touch targets (d) captions on videos
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Hint: 18 px
    Body text: 25 px (a) Menu (b) Hint (c) Body text
17. 17.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) text that can grow (d) big touch targets
18. 18.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
19. 19.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) fast-flashing lights (d) tiny tap areas
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Title: 17 px
    Body text: 12 px
    Label: 18 px
22. 22.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) big touch targets
23. 23.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
24. 24.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Body text: 17 px
    Label: 26 px (a) Label (b) Body text (c) Caption
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Label: 14 px
    Title: 17 px (a) Body text (b) Label (c) Title
27. 27.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) colour as the only clue (d) text that can grow
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Body text: 12 px
    Hint: 10 px
    Title: 24 px
    Label: 21 px
29. 29.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) fast-flashing lights (d) big touch targets
31. 31.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.True or false: “big touch targets” 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?
    Caption: 26 px
    Body text: 24 px
    Title: 13 px
    Label: 22 px (a) Caption (b) Title (c) Label (d) Body text
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Footer: 25 px
    Label: 27 px (a) Label (b) Footer (c) Hint
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Title: 24 px
    Body text: 22 px
    Hint: 21 px
    Label: 22 px
36. 36.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
37. 37.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Hint: 22 px
    Label: 13 px
39. 39.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
40. 40.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) strong colour contrast (d) icons with no labels

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