App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 218 · 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.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
3. 3.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 17 px
   Label: 17 px
   Footer: 14 px
5. 5.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) fast-flashing lights (d) strong colour contrast
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 26 px
   Caption: 23 px
   Menu: 11 px (a) Body text (b) Caption (c) Menu
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Hint: 17 px
   Caption: 27 px
   Label: 10 px (a) Hint (b) Title (c) Label (d) Caption
9. 9.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
10. 10.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) captions on videos (d) tiny tap areas
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) fast-flashing lights (d) sudden loud sounds
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Body text: 20 px
    Caption: 15 px
13. 13.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
15. 15.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) big touch targets (d) tiny tap areas
16. 16.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
17. 17.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) strong colour contrast
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Footer: 24 px
    Hint: 26 px
    Label: 13 px
    Caption: 16 px (a) Label (b) Hint (c) Menu (d) Footer
19. 19.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) big touch targets (d) fast-flashing lights
20. 20.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 23 px
    Menu: 11 px
    Label: 11 px
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Menu: 22 px
    Title: 20 px
    Footer: 17 px
    Caption: 12 px (a) Caption (b) Menu (c) Label (d) Title
24. 24.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 15 px
    Footer: 23 px
    Hint: 24 px
    Caption: 17 px
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Menu: 20 px
    Label: 20 px
    Title: 25 px
    Footer: 27 px (a) Hint (b) Label (c) Title (d) Menu
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Label: 26 px
    Caption: 12 px
    Hint: 28 px (a) Label (b) Hint (c) Body text (d) Caption
28. 28.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) text that can grow
29. 29.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
31. 31.Which of these helps everyone use the app? (a) colour as the only clue (b) text that can grow (c) tiny tap areas (d) sudden loud sounds
32. 32.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 13 px
    Hint: 17 px
    Menu: 11 px
    Body text: 12 px
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Hint: 24 px
    Label: 14 px
35. 35.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) labels on every icon (d) sudden loud sounds
36. 36.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
37. 37.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
38. 38.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
39. 39.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
40. 40.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?

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