App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 175 · 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.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) big touch targets (d) captions on videos
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 25 px
   Title: 27 px
   Caption: 18 px
   Menu: 21 px
   Footer: 11 px (a) Body text (b) Footer (c) Title (d) Caption
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 25 px
   Footer: 10 px
   Label: 28 px (a) Label (b) Body text (c) Footer
7. 7.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
8. 8.Which of these makes the app harder to use? (a) tiny tap areas (b) text that can grow (c) labels on every icon (d) big touch targets
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 27 px
   Title: 9 px
   Footer: 20 px
   Hint: 20 px (a) Hint (b) Caption (c) Title (d) Footer
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Label: 22 px
    Menu: 22 px
    Footer: 21 px (a) Footer (b) Body text (c) Label (d) Menu
11. 11.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
12. 12.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Hint: 19 px
    Footer: 23 px
    Menu: 23 px
    Title: 13 px (a) Caption (b) Title (c) Hint (d) Footer
14. 14.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 23 px
    Label: 17 px
    Hint: 12 px
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Label: 23 px
    Footer: 26 px
    Menu: 23 px (a) Body text (b) Footer (c) Menu (d) Label
17. 17.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Body text: 22 px
    Menu: 19 px
    Title: 10 px (a) Hint (b) Menu (c) Title (d) Body text
19. 19.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) strong colour contrast (d) big touch targets
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) big touch targets
21. 21.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
22. 22.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) icons with no labels (d) tiny tap areas
23. 23.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) captions on videos
24. 24.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
27. 27.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) labels on every icon (d) icons with no labels
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Menu: 16 px
    Hint: 22 px
    Title: 16 px
    Footer: 21 px (a) Hint (b) Title (c) Menu (d) Caption
29. 29.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) colour as the only clue
30. 30.♿ 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
31. 31.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Footer: 17 px
    Title: 18 px
    Hint: 11 px
    Label: 28 px (a) Hint (b) Title (c) Footer (d) Body text
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Caption: 23 px
    Footer: 12 px
34. 34.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 26 px
    Footer: 13 px
    Menu: 22 px
    Body text: 28 px (a) Menu (b) Title (c) Footer (d) Label
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Body text: 19 px
    Footer: 11 px
    Title: 22 px
    Menu: 22 px (a) Title (b) Body text (c) Footer (d) Label
37. 37.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) captions on videos (d) tiny tap areas
38. 38.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
39. 39.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
40. 40.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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