App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 796 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 12 px
   Footer: 25 px
   Title: 28 px
   Label: 17 px (a) Title (b) Footer (c) Hint (d) Label
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Hint: 12 px
   Footer: 19 px
   Label: 21 px (a) Label (b) Hint (c) Footer (d) Body text
3. 3.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
4. 4.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
5. 5.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
7. 7.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
8. 8.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 24 px
   Caption: 28 px
   Label: 21 px
   Body text: 10 px (a) Caption (b) Body text (c) Label (d) Hint
10. 10.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) tiny tap areas (d) text that can grow
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Title: 26 px
    Label: 26 px
    Hint: 17 px
    Caption: 19 px (a) Title (b) Hint (c) Menu (d) Label
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Label: 18 px
    Title: 25 px
    Menu: 27 px
    Body text: 21 px (a) Label (b) Menu (c) Footer (d) Title
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Body text: 24 px
    Label: 14 px
    Menu: 13 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Hint: 11 px
    Menu: 15 px
15. 15.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) tiny tap areas
16. 16.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
17. 17.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Caption: 14 px
    Menu: 20 px (a) Caption (b) Menu (c) Hint
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Title: 21 px
    Menu: 10 px
    Footer: 19 px
    Caption: 15 px
20. 20.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
21. 21.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) colour as the only clue (d) labels on every icon
22. 22.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
23. 23.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
24. 24.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) strong colour contrast (d) fast-flashing lights
26. 26.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Title: 25 px
    Menu: 13 px (a) Menu (b) Title (c) Body text
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Hint: 17 px
    Label: 14 px
    Title: 23 px
29. 29.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
30. 30.Which of these helps everyone use the app? (a) strong colour contrast (b) fast-flashing lights (c) colour as the only clue (d) tiny tap areas
31. 31.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 10 px
    Title: 21 px
    Hint: 19 px
    Label: 14 px
    Menu: 13 px
33. 33.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Footer: 11 px
    Caption: 20 px (a) Footer (b) Caption (c) Menu
35. 35.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
36. 36.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Caption: 15 px
    Hint: 19 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Caption: 26 px
    Title: 19 px
    Hint: 18 px
    Footer: 14 px (a) Label (b) Title (c) Footer (d) Caption
39. 39.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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