App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 411 · 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.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) colour as the only clue (d) tiny tap areas
2. 2.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) captions on videos
3. 3.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 10 px
   Label: 17 px
   Body text: 23 px
   Menu: 13 px
5. 5.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) labels on every icon (d) big touch targets
6. 6.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) text that can grow (d) strong colour contrast
7. 7.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
8. 8.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
9. 9.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Hint: 17 px
    Label: 13 px
    Menu: 25 px (a) Label (b) Menu (c) Hint (d) Title
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) sudden loud sounds
12. 12.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
13. 13.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) strong colour contrast (d) icons with no labels
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Menu: 17 px
    Body text: 21 px
    Label: 14 px
15. 15.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) colour as the only clue (d) icons with no labels
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Caption: 17 px
    Menu: 22 px
    Hint: 22 px
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Caption: 22 px
    Footer: 14 px
18. 18.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) big touch targets (d) strong colour contrast
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Body text: 11 px
    Label: 20 px
    Hint: 25 px
    Title: 26 px (a) Label (b) Footer (c) Hint (d) Body text
20. 20.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
21. 21.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Hint: 20 px
    Label: 18 px
    Title: 23 px
23. 23.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
24. 24.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
25. 25.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
26. 26.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Footer: 22 px
    Caption: 28 px (a) Footer (b) Hint (c) Caption
29. 29.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
30. 30.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) strong colour contrast (d) icons with no labels
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Label: 26 px
    Footer: 9 px
    Title: 19 px
    Caption: 26 px (a) Label (b) Body text (c) Title (d) Footer
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Title: 18 px
    Body text: 13 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Label: 18 px
    Menu: 19 px
    Caption: 10 px
    Body text: 23 px
34. 34.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
35. 35.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
36. 36.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
37. 37.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Body text: 17 px
    Caption: 22 px
    Hint: 17 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Label: 20 px
    Title: 21 px
    Footer: 12 px
    Hint: 16 px
40. 40.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) labels on every icon

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