App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 156 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 11 px
   Hint: 12 px
   Footer: 13 px
2. 2.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) fast-flashing lights (d) strong colour contrast
3. 3.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) captions on videos (d) colour as the only clue
4. 4.Which of these makes the app harder to use? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) labels on every icon
5. 5.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Caption: 25 px
   Body text: 27 px
   Label: 14 px (a) Title (b) Label (c) Caption (d) Body text
8. 8.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 12 px
   Body text: 22 px
   Label: 16 px (a) Menu (b) Label (c) Body text
10. 10.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
11. 11.Which of these makes the app harder to use? (a) strong colour contrast (b) tiny tap areas (c) captions on videos (d) big touch targets
12. 12.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Caption: 25 px
    Body text: 10 px (a) Body text (b) Caption (c) Title
14. 14.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) labels on every icon (d) big touch targets
15. 15.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Title: 11 px
    Footer: 22 px (a) Footer (b) Title (c) Menu
17. 17.Which of these makes the app harder to use? (a) labels on every icon (b) icons with no labels (c) strong colour contrast (d) big touch targets
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) fast-flashing lights (d) strong colour contrast
19. 19.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
20. 20.♿ A screen has 10 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Caption: 17 px
    Hint: 16 px
22. 22.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
23. 23.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) colour as the only clue (d) icons with no labels
25. 25.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Body text: 23 px
    Title: 22 px (a) Body text (b) Title (c) Caption
27. 27.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 23 px
    Label: 23 px
    Title: 11 px
    Body text: 23 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Menu: 18 px
    Footer: 10 px
    Body text: 28 px
    Label: 24 px (a) Menu (b) Title (c) Footer (d) Body text
30. 30.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Caption: 18 px
    Body text: 27 px
    Label: 27 px
    Footer: 14 px (a) Body text (b) Footer (c) Caption (d) Title
32. 32.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) colour as the only clue (d) labels on every icon
33. 33.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
34. 34.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
36. 36.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Title: 13 px
    Footer: 14 px
38. 38.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
39. 39.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
40. 40.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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