App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 858 · 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.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) icons with no labels (d) strong colour contrast
2. 2.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
3. 3.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
4. 4.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 24 px
   Hint: 11 px
   Label: 19 px
   Title: 12 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 9 px
   Footer: 24 px
   Hint: 27 px
   Body text: 27 px (a) Footer (b) Hint (c) Label (d) Body text
7. 7.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) tiny tap areas (d) sudden loud sounds
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 13 px
   Menu: 18 px
   Hint: 25 px
   Caption: 26 px
   Label: 17 px (a) Hint (b) Caption (c) Body text (d) Menu
9. 9.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) captions on videos (d) big touch targets
10. 10.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
11. 11.Which of these makes the app harder to use? (a) fast-flashing lights (b) labels on every icon (c) captions on videos (d) strong colour contrast
12. 12.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) sudden loud sounds (d) strong colour contrast
14. 14.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
15. 15.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
16. 16.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
17. 17.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Footer: 26 px
    Label: 17 px
    Hint: 10 px (a) Footer (b) Hint (c) Label (d) Body text
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Hint: 24 px
    Body text: 17 px
    Footer: 22 px
20. 20.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Title: 24 px
    Body text: 27 px (a) Title (b) Body text (c) Footer
22. 22.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) icons with no labels (d) captions on videos
23. 23.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
25. 25.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) text that can grow (d) tiny tap areas
26. 26.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Menu: 20 px
    Label: 26 px
    Footer: 10 px
    Hint: 23 px (a) Menu (b) Label (c) Body text (d) Footer
28. 28.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
29. 29.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) big touch targets (d) sudden loud sounds
30. 30.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Menu: 20 px
    Caption: 27 px
    Footer: 17 px (a) Caption (b) Menu (c) Footer (d) Hint
33. 33.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the battery (d) the server
34. 34.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) text that can grow (d) captions on videos
35. 35.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Label: 24 px
    Caption: 23 px
    Menu: 10 px
    Title: 17 px
37. 37.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
38. 38.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
40. 40.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) labels on every icon (d) icons with no labels

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