App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 845 · 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: colour as the only clue? (a) helps everyone (b) makes it harder
2. 2.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
3. 3.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 21 px
   Menu: 23 px
   Hint: 12 px (a) Body text (b) Menu (c) Hint
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) text that can grow
6. 6.Which of these helps everyone use the app? (a) text that can grow (b) icons with no labels (c) sudden loud sounds (d) fast-flashing lights
7. 7.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
8. 8.♿ A screen has 7 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) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
10. 10.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
11. 11.Which of these helps everyone use the app? (a) strong colour contrast (b) sudden loud sounds (c) icons with no labels (d) fast-flashing lights
12. 12.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) big touch targets (d) fast-flashing lights
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 20 px
    Body text: 24 px
    Hint: 9 px (a) Title (b) Body text (c) Hint (d) Label
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) icons with no labels (d) big touch targets
15. 15.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Menu: 18 px
    Footer: 22 px
    Label: 12 px (a) Menu (b) Footer (c) Label (d) Title
17. 17.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
18. 18.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Hint: 13 px
    Menu: 15 px
    Body text: 17 px
20. 20.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
22. 22.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
23. 23.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Menu: 22 px
    Footer: 12 px
    Title: 21 px
    Hint: 13 px
25. 25.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
26. 26.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) strong colour contrast (d) text that can grow
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Body text: 13 px
    Menu: 12 px
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Menu: 28 px
    Body text: 27 px
    Caption: 14 px (a) Body text (b) Caption (c) Menu (d) Title
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Menu: 19 px
    Label: 14 px
    Caption: 20 px
    Footer: 22 px (a) Hint (b) Caption (c) Label (d) Menu
30. 30.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) fast-flashing lights (d) captions on videos
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Footer: 20 px
    Menu: 20 px (a) Menu (b) Body text (c) Footer
32. 32.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Menu: 9 px
    Hint: 18 px (a) Hint (b) Body text (c) Menu
34. 34.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) only experts (d) nobody
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Footer: 18 px
    Hint: 22 px
    Label: 20 px
    Title: 16 px (a) Menu (b) Footer (c) Label (d) Hint
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Hint: 10 px
    Title: 22 px
37. 37.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Body text: 11 px
    Menu: 22 px
    Label: 24 px
    Caption: 15 px
39. 39.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
40. 40.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) colour as the only clue

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