App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 216 · 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.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 23 px
   Hint: 19 px
   Label: 16 px
3. 3.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
4. 4.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) text that can grow
5. 5.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) sudden loud sounds
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 24 px
   Caption: 18 px
   Title: 9 px (a) Caption (b) Title (c) Label
7. 7.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) icons with no labels (d) labels on every icon
8. 8.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
9. 9.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
10. 10.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) colour as the only clue
11. 11.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
12. 12.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Title: 18 px
    Hint: 20 px
    Footer: 11 px
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Caption: 28 px
    Hint: 14 px
    Label: 21 px
    Title: 18 px (a) Body text (b) Hint (c) Caption (d) Label
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Body text: 10 px
    Title: 17 px
16. 16.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) text that can grow
17. 17.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Body text: 22 px
    Label: 19 px
    Title: 17 px
    Menu: 10 px
19. 19.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) colour as the only clue (d) captions on videos
21. 21.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) text that can grow (d) colour as the only clue
22. 22.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
23. 23.Which of these helps everyone use the app? (a) icons with no labels (b) strong colour contrast (c) colour as the only clue (d) sudden loud sounds
24. 24.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
25. 25.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
26. 26.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Body text: 15 px
    Menu: 22 px
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Body text: 11 px
    Footer: 18 px
    Caption: 14 px
    Hint: 22 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Hint: 19 px
    Body text: 13 px
    Footer: 23 px
    Caption: 21 px (a) Footer (b) Title (c) Hint (d) Body text
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Hint: 18 px
    Caption: 21 px
    Footer: 22 px
    Body text: 18 px
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Title: 22 px
    Menu: 16 px
    Caption: 23 px
32. 32.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) strong colour contrast
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Caption: 21 px
    Hint: 24 px (a) Hint (b) Caption (c) Menu
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Hint: 10 px
    Label: 11 px
    Menu: 14 px
    Body text: 24 px
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
36. 36.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
37. 37.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Title: 10 px
    Label: 18 px (a) Menu (b) Label (c) Title
39. 39.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
40. 40.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?

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