App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 768 · 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) text that can grow (b) captions on videos (c) fast-flashing lights (d) labels on every icon
2. 2.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
3. 3.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) big touch targets (d) captions on videos
5. 5.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) captions on videos (d) text that can grow
6. 6.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) colour as the only clue
7. 7.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 23 px
   Caption: 14 px
   Menu: 14 px
9. 9.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) captions on videos (d) labels on every icon
10. 10.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Footer: 18 px
    Menu: 23 px
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Title: 26 px
    Body text: 23 px
    Menu: 9 px
    Hint: 25 px (a) Caption (b) Title (c) Body text (d) Menu
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Footer: 14 px
    Body text: 21 px
    Menu: 16 px
    Title: 22 px (a) Menu (b) Body text (c) Footer (d) Hint
14. 14.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
15. 15.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Hint: 19 px
    Menu: 19 px
    Footer: 14 px
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
18. 18.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
19. 19.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Body text: 18 px
    Label: 11 px
    Caption: 15 px
    Menu: 10 px
21. 21.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
23. 23.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
24. 24.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
25. 25.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Body text: 12 px
    Hint: 22 px
27. 27.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
28. 28.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Caption: 12 px
    Hint: 22 px
    Title: 26 px (a) Hint (b) Caption (c) Title (d) Body text
30. 30.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Label: 22 px
    Title: 11 px
    Menu: 20 px
    Hint: 18 px (a) Menu (b) Body text (c) Title (d) Label
32. 32.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) icons with no labels (d) text that can grow
34. 34.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
35. 35.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
36. 36.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Body text: 13 px
    Footer: 21 px (a) Body text (b) Footer (c) Hint
38. 38.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
39. 39.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) text that can grow
40. 40.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label

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