App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 801 · 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: “labels on every icon” makes the app harder to use. (a) True (b) False
2. 2.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) tiny tap areas
3. 3.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 16 px
   Body text: 13 px
   Menu: 21 px
   Title: 11 px
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 13 px
   Hint: 12 px
   Caption: 13 px
   Label: 15 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 19 px
   Caption: 28 px
   Menu: 10 px
   Body text: 25 px (a) Menu (b) Body text (c) Footer (d) Caption
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 17 px
   Label: 23 px
   Body text: 12 px
   Footer: 20 px
   Title: 10 px
8. 8.♿ A screen has 6 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. How many texts on this screen are too small?
   Body text: 23 px
   Footer: 10 px
   Caption: 17 px
   Hint: 23 px
   Title: 23 px
10. 10.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
11. 11.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
12. 12.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
13. 13.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a sound (d) a long animation
14. 14.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Label: 19 px
    Body text: 16 px
    Footer: 28 px (a) Label (b) Menu (c) Body text (d) Footer
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
17. 17.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
18. 18.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
19. 19.Which of these makes the app harder to use? (a) sudden loud sounds (b) labels on every icon (c) captions on videos (d) text that can grow
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Title: 18 px
    Label: 24 px
    Menu: 17 px (a) Menu (b) Title (c) Body text (d) Label
21. 21.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Title: 9 px
    Menu: 19 px
    Label: 18 px
    Body text: 25 px (a) Footer (b) Menu (c) Label (d) Title
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Caption: 28 px
    Label: 16 px
    Menu: 19 px
    Hint: 23 px (a) Caption (b) Menu (c) Title (d) Label
24. 24.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) colour as the only clue (d) strong colour contrast
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Menu: 20 px
    Hint: 19 px
    Label: 9 px (a) Label (b) Footer (c) Menu (d) Hint
28. 28.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
29. 29.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) text that can grow (d) icons with no labels
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Menu: 17 px
    Caption: 14 px (a) Title (b) Caption (c) Menu
31. 31.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
32. 32.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) text that can grow (d) sudden loud sounds
33. 33.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Footer: 12 px
    Menu: 19 px
    Caption: 12 px
    Hint: 12 px
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Title: 26 px
    Caption: 12 px (a) Title (b) Caption (c) Body text
36. 36.Which of these helps everyone use the app? (a) strong colour contrast (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Body text: 21 px
    Footer: 11 px
38. 38.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) tiny tap areas (d) labels on every icon
39. 39.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) colour as the only clue

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