App Dev Worksheet: Accessibility

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

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