App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 96 · 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: fast-flashing lights? (a) helps everyone (b) makes it harder
2. 2.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) icons with no labels (d) tiny tap areas
3. 3.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
4. 4.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 21 px
   Footer: 15 px
   Hint: 19 px
   Caption: 13 px
   Body text: 24 px
6. 6.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) labels on every icon
8. 8.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) text that can grow (d) tiny tap areas
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 26 px
   Title: 16 px
   Label: 17 px
   Footer: 13 px (a) Title (b) Hint (c) Label (d) Footer
10. 10.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) tiny tap areas (d) text that can grow
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Menu: 11 px
    Body text: 24 px
    Hint: 16 px
    Caption: 24 px
13. 13.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) labels on every icon (d) sudden loud sounds
14. 14.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) captions on videos (d) tiny tap areas
15. 15.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) captions on videos (d) labels on every icon
17. 17.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) captions on videos
18. 18.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) fast typists (d) the server
19. 19.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
20. 20.Which of these makes the app harder to use? (a) tiny tap areas (b) text that can grow (c) captions on videos (d) big touch targets
21. 21.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
22. 22.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
23. 23.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) strong colour contrast
24. 24.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Caption: 24 px
    Label: 20 px
    Title: 23 px
26. 26.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) colour as the only clue
29. 29.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) big touch targets (d) captions on videos
30. 30.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
31. 31.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) captions on videos (d) strong colour contrast
32. 32.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) strong colour contrast (d) labels on every icon
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Label: 22 px
    Footer: 13 px
    Title: 23 px
    Menu: 24 px (a) Caption (b) Footer (c) Title (d) Label
34. 34.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
35. 35.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
36. 36.♿ 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
37. 37.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
38. 38.♿ A screen has 11 icon buttons. Only 5 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?
    Title: 23 px
    Hint: 9 px
    Body text: 22 px
    Caption: 27 px (a) Caption (b) Body text (c) Hint (d) Title
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Hint: 16 px
    Caption: 19 px
    Footer: 25 px (a) Hint (b) Label (c) Footer (d) Caption

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