App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 392 · 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) fast-flashing lights (c) icons with no labels (d) tiny tap areas
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 28 px
   Footer: 26 px
   Title: 14 px
   Hint: 17 px (a) Hint (b) Menu (c) Footer (d) Title
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 22 px
   Menu: 17 px
   Label: 12 px (a) Menu (b) Footer (c) Label
4. 4.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
5. 5.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) fast-flashing lights (d) text that can grow
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 24 px
   Caption: 20 px
   Label: 12 px
   Menu: 26 px
   Title: 17 px (a) Body text (b) Caption (c) Menu (d) Label
7. 7.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
8. 8.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
9. 9.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
10. 10.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
11. 11.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
12. 12.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Label: 25 px
    Menu: 25 px
    Caption: 20 px
    Hint: 21 px (a) Caption (b) Menu (c) Footer (d) Label
14. 14.Which of these makes the app harder to use? (a) tiny tap areas (b) text that can grow (c) strong colour contrast (d) big touch targets
15. 15.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
16. 16.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Body text: 22 px
    Hint: 23 px
    Title: 13 px
18. 18.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) labels on every icon
19. 19.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
20. 20.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
21. 21.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) sudden loud sounds (d) colour as the only clue
22. 22.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) big touch targets
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Body text: 14 px
    Menu: 21 px
    Label: 22 px (a) Label (b) Menu (c) Footer (d) Body text
25. 25.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 19 px
    Label: 19 px
    Body text: 27 px (a) Body text (b) Label (c) Title (d) Hint
27. 27.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) captions on videos (d) colour as the only clue
28. 28.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
29. 29.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Menu: 15 px
    Body text: 19 px
31. 31.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
32. 32.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
33. 33.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) labels on every icon
36. 36.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) colour as the only clue (d) text that can grow
38. 38.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) big touch targets
40. 40.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False

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