App Dev Worksheet: Accessibility

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

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