App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 90 · 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.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
2. 2.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
3. 3.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) tiny tap areas (d) fast-flashing lights
4. 4.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
5. 5.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) icons with no labels
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 20 px
   Title: 16 px
   Footer: 12 px
   Body text: 16 px
   Label: 20 px (a) Menu (b) Title (c) Body text (d) Footer
7. 7.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) text that can grow (d) colour as the only clue
8. 8.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
9. 9.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) tiny tap areas (d) text that can grow
10. 10.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) big touch targets
11. 11.♿ 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
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
13. 13.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) captions on videos (d) icons with no labels
14. 14.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
15. 15.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) strong colour contrast (d) text that can grow
16. 16.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
17. 17.♿ A screen has 5 icon buttons. Only 3 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?
    Menu: 28 px
    Title: 26 px
    Footer: 12 px
    Hint: 20 px (a) Hint (b) Footer (c) Title (d) Menu
19. 19.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
20. 20.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Hint: 21 px
    Title: 25 px
    Menu: 17 px (a) Hint (b) Title (c) Footer (d) Menu
23. 23.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Label: 18 px
    Hint: 23 px
    Title: 20 px
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Caption: 9 px
    Footer: 27 px (a) Caption (b) Footer (c) Menu
26. 26.Which of these makes the app harder to use? (a) sudden loud sounds (b) captions on videos (c) text that can grow (d) labels on every icon
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 18 px
    Footer: 10 px
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Title: 24 px
    Body text: 28 px
    Footer: 14 px
    Hint: 28 px (a) Title (b) Caption (c) Body text (d) Footer
29. 29.♿ A screen has 9 icon buttons. Only 1 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: icons with no labels? (a) makes it harder (b) helps everyone
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Footer: 18 px
    Caption: 13 px
    Label: 17 px (a) Caption (b) Label (c) Footer (d) Hint
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Title: 21 px
    Label: 19 px
    Footer: 12 px
    Hint: 13 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 18 px
    Title: 13 px
    Body text: 24 px
    Menu: 11 px
    Label: 17 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Body text: 20 px
    Footer: 21 px
    Label: 24 px
    Title: 27 px (a) Label (b) Body text (c) Footer (d) Hint
35. 35.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) strong colour contrast (d) captions on videos
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) strong colour contrast (d) icons with no labels
38. 38.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Title: 11 px
    Label: 21 px
    Caption: 16 px
    Body text: 15 px
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Caption: 18 px
    Body text: 22 px

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