App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 226 · 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?
   Body text: 27 px
   Title: 11 px
   Caption: 28 px
   Footer: 17 px
   Label: 25 px (a) Title (b) Footer (c) Body text (d) Caption
2. 2.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
4. 4.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
5. 5.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) icons with no labels (d) colour as the only clue
6. 6.♿ A screen has 11 icon buttons. Only 6 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?
   Footer: 13 px
   Caption: 12 px
   Body text: 14 px
   Hint: 12 px
   Label: 24 px
8. 8.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) captions on videos
9. 9.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) fast-flashing lights
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Label: 12 px
    Caption: 10 px
    Footer: 13 px
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Label: 19 px
    Title: 17 px
    Body text: 23 px
    Footer: 13 px
12. 12.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
13. 13.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) sudden loud sounds (d) captions on videos
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Body text: 23 px
    Title: 10 px
    Menu: 16 px
    Label: 26 px (a) Menu (b) Title (c) Body text (d) Footer
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Hint: 13 px
    Label: 13 px
16. 16.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) fast-flashing lights (d) labels on every icon
17. 17.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
18. 18.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
19. 19.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
20. 20.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
21. 21.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Body text: 16 px
    Hint: 17 px
23. 23.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
24. 24.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) labels on every icon (d) icons with no labels
25. 25.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
26. 26.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) fast-flashing lights (d) tiny tap areas
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Body text: 17 px
    Title: 23 px
    Menu: 11 px
    Footer: 22 px
29. 29.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to add colour (d) to slow them down
30. 30.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Body text: 12 px
    Hint: 24 px
    Footer: 15 px
32. 32.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Title: 12 px
    Caption: 17 px
    Hint: 18 px
    Menu: 21 px
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Menu: 10 px
    Title: 14 px
    Footer: 16 px
    Label: 13 px
35. 35.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
36. 36.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Footer: 14 px
    Hint: 13 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Hint: 21 px
    Caption: 19 px
    Body text: 10 px (a) Hint (b) Label (c) Body text (d) Caption
39. 39.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) text that can grow (d) sudden loud sounds
40. 40.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False

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