App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 251 · 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?
   Caption: 24 px
   Body text: 16 px
   Hint: 14 px (a) Hint (b) Body text (c) Caption
3. 3.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
4. 4.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
5. 5.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 24 px
   Menu: 14 px
   Title: 18 px
   Caption: 23 px
7. 7.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 24 px
   Footer: 12 px
   Title: 18 px
   Body text: 11 px
9. 9.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
10. 10.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) labels on every icon
11. 11.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
12. 12.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) colour as the only clue
13. 13.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) labels on every icon
17. 17.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
18. 18.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) labels on every icon (d) icons with no labels
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Body text: 19 px
    Caption: 20 px
    Menu: 27 px
    Label: 23 px (a) Body text (b) Menu (c) Title (d) Caption
21. 21.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
22. 22.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a sound (d) a long animation
23. 23.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
24. 24.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) labels on every icon (d) captions on videos
25. 25.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
26. 26.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) captions on videos (d) text that can grow
27. 27.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) labels on every icon (d) big touch targets
28. 28.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) text that can grow (d) fast-flashing lights
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Hint: 12 px
    Body text: 12 px
30. 30.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) sudden loud sounds (d) captions on videos
31. 31.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
33. 33.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) sudden loud sounds (d) captions on videos
35. 35.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Hint: 23 px
    Footer: 10 px
    Label: 17 px (a) Label (b) Footer (c) Title (d) Hint
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Menu: 26 px
    Title: 27 px
    Footer: 10 px (a) Title (b) Footer (c) Menu (d) Label
38. 38.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) text that can grow (d) icons with no labels
39. 39.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder

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