App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 719 · 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. How many texts on this screen are too small?
   Body text: 17 px
   Hint: 11 px
   Label: 11 px
   Caption: 13 px
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 27 px
   Label: 21 px
   Menu: 9 px (a) Menu (b) Label (c) Footer
3. 3.Which of these makes the app harder to use? (a) text that can grow (b) fast-flashing lights (c) strong colour contrast (d) big touch targets
4. 4.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) big touch targets (d) labels on every icon
5. 5.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to hide the sound (d) to add colour
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 20 px
   Hint: 19 px
   Footer: 23 px
7. 7.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) labels on every icon (d) text that can grow
8. 8.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
9. 9.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
10. 10.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
11. 11.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
12. 12.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) sudden loud sounds
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 21 px
    Menu: 9 px
    Hint: 20 px (a) Label (b) Hint (c) Menu
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Caption: 17 px
    Label: 18 px (a) Label (b) Caption (c) Menu
15. 15.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
16. 16.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
17. 17.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 21 px
    Body text: 22 px
    Title: 9 px
    Menu: 26 px
    Caption: 22 px (a) Menu (b) Label (c) Body text (d) Title
19. 19.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
20. 20.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) captions on videos (d) sudden loud sounds
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
23. 23.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) captions on videos (d) labels on every icon
26. 26.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
27. 27.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Label: 24 px
    Menu: 16 px
    Title: 12 px
    Body text: 24 px (a) Caption (b) Label (c) Title (d) Menu
29. 29.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Menu: 21 px
    Footer: 17 px
    Hint: 12 px (a) Menu (b) Body text (c) Footer (d) Hint
31. 31.♿ A screen has 11 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
33. 33.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 27 px
    Footer: 24 px
    Title: 13 px (a) Footer (b) Title (c) Label
37. 37.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
38. 38.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) strong colour contrast
39. 39.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
40. 40.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) fast typists (d) colour-blind users

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