App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 274 · 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.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 13 px
   Footer: 18 px
   Menu: 19 px (a) Footer (b) Menu (c) Title
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 22 px
   Caption: 24 px
   Menu: 15 px
4. 4.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) labels on every icon
5. 5.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
6. 6.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 18 px
   Menu: 11 px
   Body text: 21 px
8. 8.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
9. 9.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
10. 10.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) strong colour contrast
11. 11.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
13. 13.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) big touch targets (d) text that can grow
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Footer: 23 px
    Hint: 28 px
    Label: 19 px
    Title: 24 px (a) Footer (b) Body text (c) Hint (d) Label
15. 15.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) colour as the only clue
17. 17.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) big touch targets (d) icons with no labels
18. 18.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 10 px
    Title: 24 px
    Hint: 23 px
    Menu: 25 px (a) Menu (b) Caption (c) Title (d) Hint
20. 20.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Title: 14 px
    Body text: 16 px
    Label: 15 px
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Hint: 13 px
    Label: 20 px
    Menu: 22 px (a) Hint (b) Body text (c) Label (d) Menu
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Body text: 13 px
    Menu: 22 px
    Footer: 23 px
    Hint: 10 px
24. 24.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
25. 25.Which of these makes the app harder to use? (a) text that can grow (b) sudden loud sounds (c) strong colour contrast (d) captions on videos
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Footer: 20 px
    Menu: 14 px (a) Footer (b) Menu (c) Caption
27. 27.♿ Does this help everyone, or make the app harder to use: captions on videos? (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?
    Menu: 10 px
    Body text: 10 px
    Title: 19 px
    Hint: 17 px
    Footer: 18 px
29. 29.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
30. 30.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.Which of these helps everyone use the app? (a) colour as the only clue (b) captions on videos (c) fast-flashing lights (d) tiny tap areas
32. 32.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
33. 33.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
34. 34.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
35. 35.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
36. 36.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
37. 37.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
38. 38.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
39. 39.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Menu: 27 px
    Hint: 24 px
    Body text: 19 px (a) Menu (b) Title (c) Hint (d) Body text

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