App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 676 · 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.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
2. 2.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
3. 3.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
4. 4.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) icons with no labels
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 21 px
   Title: 23 px
   Footer: 13 px
   Caption: 28 px (a) Caption (b) Footer (c) Body text (d) Title
7. 7.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) strong colour contrast
9. 9.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) big touch targets (d) labels on every icon
10. 10.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
11. 11.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
12. 12.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) colour as the only clue (d) labels on every icon
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Title: 17 px
    Menu: 21 px
    Hint: 16 px
14. 14.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) so anyone can follow (d) to hide the sound
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Label: 20 px
    Body text: 12 px
    Hint: 24 px
    Title: 17 px (a) Label (b) Hint (c) Menu (d) Body text
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Hint: 24 px
    Body text: 23 px (a) Label (b) Hint (c) Body text
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Footer: 24 px
    Hint: 17 px
    Label: 15 px
19. 19.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
20. 20.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) captions on videos (d) strong colour contrast
22. 22.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
23. 23.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) sudden loud sounds (d) labels on every icon
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) sudden loud sounds
25. 25.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
26. 26.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Body text: 24 px
    Title: 14 px
    Caption: 19 px
28. 28.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Body text: 20 px
    Caption: 21 px
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Title: 20 px
    Label: 18 px
    Body text: 10 px
    Hint: 22 px
31. 31.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Footer: 11 px
    Menu: 11 px
    Hint: 17 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Title: 14 px
    Body text: 16 px
    Menu: 22 px
    Hint: 18 px
34. 34.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
36. 36.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
37. 37.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 13 px
    Hint: 23 px
39. 39.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
40. 40.Which of these makes the app harder to use? (a) sudden loud sounds (b) labels on every icon (c) big touch targets (d) text that can grow

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