App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 354 · 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.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
2. 2.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 25 px
   Body text: 11 px
   Caption: 17 px
   Label: 25 px (a) Caption (b) Footer (c) Label (d) Body text
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 14 px
   Label: 28 px
   Footer: 17 px (a) Footer (b) Title (c) Label
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 10 px
   Body text: 11 px
   Hint: 20 px
   Footer: 10 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 16 px
   Footer: 10 px
   Label: 22 px
   Title: 26 px (a) Hint (b) Title (c) Footer (d) Label
7. 7.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) fast-flashing lights (d) text that can grow
8. 8.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) fast-flashing lights
9. 9.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Footer: 16 px
    Hint: 24 px
    Body text: 20 px
    Title: 19 px
11. 11.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) text that can grow (d) tiny tap areas
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Label: 19 px
    Body text: 22 px (a) Label (b) Body text (c) Footer
13. 13.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
15. 15.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
16. 16.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) strong colour contrast (d) fast-flashing lights
17. 17.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Title: 12 px
    Menu: 24 px
    Label: 12 px
19. 19.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) colour as the only clue (d) text that can grow
20. 20.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
21. 21.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
22. 22.Which of these makes the app harder to use? (a) strong colour contrast (b) icons with no labels (c) big touch targets (d) text that can grow
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 23 px
    Menu: 10 px
    Body text: 26 px
    Hint: 23 px (a) Hint (b) Body text (c) Footer (d) Menu
24. 24.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) colour as the only clue
27. 27.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
29. 29.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Caption: 17 px
    Menu: 14 px
    Body text: 10 px
31. 31.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) so anyone can follow (d) to slow them down
32. 32.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) labels on every icon (d) text that can grow
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Title: 12 px
    Footer: 16 px
    Hint: 24 px
    Caption: 19 px
34. 34.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Caption: 17 px
    Menu: 17 px
    Hint: 22 px
    Label: 11 px
36. 36.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Footer: 11 px
    Menu: 23 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Label: 27 px
    Footer: 11 px (a) Body text (b) Footer (c) Label
39. 39.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) fast-flashing lights (d) tiny tap areas
40. 40.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) labels on every icon

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