App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 116 · 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: “icons with no labels” makes the app harder to use. (a) False (b) True
2. 2.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
3. 3.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) icons with no labels (d) colour as the only clue
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 16 px
   Body text: 16 px
   Caption: 13 px
   Menu: 14 px
   Footer: 10 px
6. 6.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
7. 7.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
8. 8.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Body text: 13 px
    Caption: 16 px
11. 11.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
12. 12.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
13. 13.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) tiny tap areas (d) strong colour contrast
15. 15.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) labels on every icon (d) sudden loud sounds
16. 16.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) fast-flashing lights (d) sudden loud sounds
17. 17.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) captions on videos (d) big touch targets
18. 18.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) fast-flashing lights (d) colour as the only clue
20. 20.♿ A screen has 8 icon buttons. Only 6 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?
    Footer: 11 px
    Title: 11 px
    Hint: 18 px
22. 22.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Menu: 13 px
    Caption: 19 px (a) Caption (b) Footer (c) Menu
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Body text: 22 px
    Hint: 16 px
    Menu: 22 px
    Caption: 22 px (a) Body text (b) Label (c) Menu (d) Hint
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 25 px
    Caption: 22 px
    Label: 10 px (a) Caption (b) Label (c) Footer
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Title: 12 px
    Menu: 18 px (a) Caption (b) Menu (c) Title
28. 28.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 26 px
    Caption: 26 px
    Label: 27 px
    Menu: 14 px
    Title: 27 px (a) Label (b) Body text (c) Caption (d) Menu
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Footer: 13 px
    Title: 15 px
31. 31.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
32. 32.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) icons with no labels (d) big touch targets
33. 33.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Hint: 16 px
    Label: 12 px
    Caption: 20 px
    Body text: 15 px
35. 35.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
36. 36.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Footer: 27 px
    Hint: 9 px (a) Body text (b) Hint (c) Footer
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) strong colour contrast (d) text that can grow
39. 39.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
40. 40.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) tiny tap areas (d) strong colour contrast

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