App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 270 · 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: “labels on every icon” makes the app harder to use. (a) True (b) False
2. 2.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) sudden loud sounds (d) fast-flashing lights
3. 3.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
4. 4.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) captions on videos
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 28 px
   Menu: 17 px
   Label: 12 px
   Hint: 27 px (a) Caption (b) Hint (c) Menu (d) Label
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
7. 7.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 13 px
   Body text: 11 px
   Title: 23 px
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 9 px
   Footer: 19 px
   Hint: 27 px (a) Menu (b) Footer (c) Hint
10. 10.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) captions on videos (d) text that can grow
11. 11.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
12. 12.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Menu: 18 px
    Caption: 15 px
    Title: 18 px
14. 14.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) sudden loud sounds (d) big touch targets
15. 15.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
16. 16.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
18. 18.♿ A screen has 8 icon buttons. Only 3 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. How many texts on this screen are too small?
    Body text: 19 px
    Footer: 14 px
    Menu: 12 px
20. 20.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) fast-flashing lights
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Title: 10 px
    Footer: 21 px
24. 24.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) strong colour contrast
25. 25.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) text that can grow (d) big touch targets
26. 26.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) colour as the only clue (d) labels on every icon
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Body text: 26 px
    Footer: 9 px (a) Caption (b) Footer (c) Body text
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) icons with no labels (d) tiny tap areas
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
30. 30.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Body text: 14 px
    Label: 18 px (a) Body text (b) Label (c) Menu
32. 32.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
33. 33.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Caption: 10 px
    Body text: 13 px
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Menu: 12 px
    Label: 16 px
    Hint: 20 px
36. 36.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) text that can grow
37. 37.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
38. 38.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
39. 39.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) captions on videos (d) colour as the only clue
40. 40.♿ 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

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